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SubjectRe: Linux 4.4.92
diff --git a/Makefile b/Makefile
index c1db50ef7fb5..fab2d640a27e 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
VERSION = 4
PATCHLEVEL = 4
-SUBLEVEL = 91
+SUBLEVEL = 92
EXTRAVERSION =
NAME = Blurry Fish Butt

diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index cb4ad6e98b28..065fcc4be263 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -809,7 +809,8 @@ static ssize_t driver_override_store(struct device *dev,
struct platform_device *pdev = to_platform_device(dev);
char *driver_override, *old, *cp;

- if (count > PATH_MAX)
+ /* We need to keep extra room for a newline */
+ if (count >= (PAGE_SIZE - 1))
return -EINVAL;

driver_override = kstrndup(buf, count, GFP_KERNEL);
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index d14bdc537587..0a2ac3efd04e 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -957,6 +957,13 @@ static void parse_ddi_port(struct drm_i915_private *dev_priv, enum port port,
is_hdmi = is_dvi && (child->common.device_type & DEVICE_TYPE_NOT_HDMI_OUTPUT) == 0;
is_edp = is_dp && (child->common.device_type & DEVICE_TYPE_INTERNAL_CONNECTOR);

+ if (port == PORT_A && is_dvi) {
+ DRM_DEBUG_KMS("VBT claims port A supports DVI%s, ignoring\n",
+ is_hdmi ? "/HDMI" : "");
+ is_dvi = false;
+ is_hdmi = false;
+ }
+
info->supports_dvi = is_dvi;
info->supports_hdmi = is_hdmi;
info->supports_dp = is_dp;
diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c
index d4d655a10df1..312aa1e33fb2 100644
--- a/drivers/hid/i2c-hid/i2c-hid.c
+++ b/drivers/hid/i2c-hid/i2c-hid.c
@@ -540,7 +540,8 @@ static int i2c_hid_alloc_buffers(struct i2c_hid *ihid, size_t report_size)
{
/* the worst case is computed from the set_report command with a
* reportID > 15 and the maximum report length */
- int args_len = sizeof(__u8) + /* optional ReportID byte */
+ int args_len = sizeof(__u8) + /* ReportID */
+ sizeof(__u8) + /* optional ReportID byte */
sizeof(__u16) + /* data register */
sizeof(__u16) + /* size of the report */
report_size; /* report */
diff --git a/drivers/hv/hv_fcopy.c b/drivers/hv/hv_fcopy.c
index 1fb02dcbc500..12dcbd8226f2 100644
--- a/drivers/hv/hv_fcopy.c
+++ b/drivers/hv/hv_fcopy.c
@@ -155,6 +155,10 @@ static void fcopy_send_data(struct work_struct *dummy)
out_src = smsg_out;
break;

+ case WRITE_TO_FILE:
+ out_src = fcopy_transaction.fcopy_msg;
+ out_len = sizeof(struct hv_do_fcopy);
+ break;
default:
out_src = fcopy_transaction.fcopy_msg;
out_len = fcopy_transaction.recv_len;
diff --git a/drivers/hwtracing/stm/core.c b/drivers/hwtracing/stm/core.c
index b6445d9e5453..d2dff159a471 100644
--- a/drivers/hwtracing/stm/core.c
+++ b/drivers/hwtracing/stm/core.c
@@ -952,7 +952,7 @@ void stm_source_unregister_device(struct stm_source_data *data)

stm_source_link_drop(src);

- device_destroy(&stm_source_class, src->dev.devt);
+ device_unregister(&src->dev);
}
EXPORT_SYMBOL_GPL(stm_source_unregister_device);

diff --git a/drivers/iio/adc/ad7793.c b/drivers/iio/adc/ad7793.c
index 4d960d3b93c0..91d34ed756ea 100644
--- a/drivers/iio/adc/ad7793.c
+++ b/drivers/iio/adc/ad7793.c
@@ -257,7 +257,7 @@ static int ad7793_setup(struct iio_dev *indio_dev,
unsigned int vref_mv)
{
struct ad7793_state *st = iio_priv(indio_dev);
- int i, ret = -1;
+ int i, ret;
unsigned long long scale_uv;
u32 id;

@@ -266,7 +266,7 @@ static int ad7793_setup(struct iio_dev *indio_dev,
return ret;

/* reset the serial interface */
- ret = spi_write(st->sd.spi, (u8 *)&ret, sizeof(ret));
+ ret = ad_sd_reset(&st->sd, 32);
if (ret < 0)
goto out;
usleep_range(500, 2000); /* Wait for at least 500us */
diff --git a/drivers/iio/adc/ad_sigma_delta.c b/drivers/iio/adc/ad_sigma_delta.c
index d10bd0c97233..22c4c17cd996 100644
--- a/drivers/iio/adc/ad_sigma_delta.c
+++ b/drivers/iio/adc/ad_sigma_delta.c
@@ -177,6 +177,34 @@ out:
}
EXPORT_SYMBOL_GPL(ad_sd_read_reg);

+/**
+ * ad_sd_reset() - Reset the serial interface
+ *
+ * @sigma_delta: The sigma delta device
+ * @reset_length: Number of SCLKs with DIN = 1
+ *
+ * Returns 0 on success, an error code otherwise.
+ **/
+int ad_sd_reset(struct ad_sigma_delta *sigma_delta,
+ unsigned int reset_length)
+{
+ uint8_t *buf;
+ unsigned int size;
+ int ret;
+
+ size = DIV_ROUND_UP(reset_length, 8);
+ buf = kcalloc(size, sizeof(*buf), GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ memset(buf, 0xff, size);
+ ret = spi_write(sigma_delta->spi, buf, size);
+ kfree(buf);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(ad_sd_reset);
+
static int ad_sd_calibrate(struct ad_sigma_delta *sigma_delta,
unsigned int mode, unsigned int channel)
{
diff --git a/drivers/iio/adc/mcp320x.c b/drivers/iio/adc/mcp320x.c
index 8569c8e1f4b2..ad2681acce9a 100644
--- a/drivers/iio/adc/mcp320x.c
+++ b/drivers/iio/adc/mcp320x.c
@@ -17,6 +17,8 @@
* MCP3204
* MCP3208
* ------------
+ * 13 bit converter
+ * MCP3301
*
* Datasheet can be found here:
* http://ww1.microchip.com/downloads/en/DeviceDoc/21293C.pdf mcp3001
@@ -96,7 +98,7 @@ static int mcp320x_channel_to_tx_data(int device_index,
}

static int mcp320x_adc_conversion(struct mcp320x *adc, u8 channel,
- bool differential, int device_index)
+ bool differential, int device_index, int *val)
{
int ret;

@@ -117,19 +119,25 @@ static int mcp320x_adc_conversion(struct mcp320x *adc, u8 channel,

switch (device_index) {
case mcp3001:
- return (adc->rx_buf[0] << 5 | adc->rx_buf[1] >> 3);
+ *val = (adc->rx_buf[0] << 5 | adc->rx_buf[1] >> 3);
+ return 0;
case mcp3002:
case mcp3004:
case mcp3008:
- return (adc->rx_buf[0] << 2 | adc->rx_buf[1] >> 6);
+ *val = (adc->rx_buf[0] << 2 | adc->rx_buf[1] >> 6);
+ return 0;
case mcp3201:
- return (adc->rx_buf[0] << 7 | adc->rx_buf[1] >> 1);
+ *val = (adc->rx_buf[0] << 7 | adc->rx_buf[1] >> 1);
+ return 0;
case mcp3202:
case mcp3204:
case mcp3208:
- return (adc->rx_buf[0] << 4 | adc->rx_buf[1] >> 4);
+ *val = (adc->rx_buf[0] << 4 | adc->rx_buf[1] >> 4);
+ return 0;
case mcp3301:
- return sign_extend32((adc->rx_buf[0] & 0x1f) << 8 | adc->rx_buf[1], 12);
+ *val = sign_extend32((adc->rx_buf[0] & 0x1f) << 8
+ | adc->rx_buf[1], 12);
+ return 0;
default:
return -EINVAL;
}
@@ -150,12 +158,10 @@ static int mcp320x_read_raw(struct iio_dev *indio_dev,
switch (mask) {
case IIO_CHAN_INFO_RAW:
ret = mcp320x_adc_conversion(adc, channel->address,
- channel->differential, device_index);
-
+ channel->differential, device_index, val);
if (ret < 0)
goto out;

- *val = ret;
ret = IIO_VAL_INT;
break;

@@ -304,6 +310,7 @@ static int mcp320x_probe(struct spi_device *spi)
indio_dev->name = spi_get_device_id(spi)->name;
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->info = &mcp320x_info;
+ spi_set_drvdata(spi, indio_dev);

chip_info = &mcp320x_chip_infos[spi_get_device_id(spi)->driver_data];
indio_dev->channels = chip_info->channels;
diff --git a/drivers/iio/adc/twl4030-madc.c b/drivers/iio/adc/twl4030-madc.c
index 0c74869a540a..7ffc5db4d7ee 100644
--- a/drivers/iio/adc/twl4030-madc.c
+++ b/drivers/iio/adc/twl4030-madc.c
@@ -866,8 +866,10 @@ static int twl4030_madc_probe(struct platform_device *pdev)

/* Enable 3v1 bias regulator for MADC[3:6] */
madc->usb3v1 = devm_regulator_get(madc->dev, "vusb3v1");
- if (IS_ERR(madc->usb3v1))
- return -ENODEV;
+ if (IS_ERR(madc->usb3v1)) {
+ ret = -ENODEV;
+ goto err_i2c;
+ }

ret = regulator_enable(madc->usb3v1);
if (ret)
@@ -876,11 +878,13 @@ static int twl4030_madc_probe(struct platform_device *pdev)
ret = iio_device_register(iio_dev);
if (ret) {
dev_err(&pdev->dev, "could not register iio device\n");
- goto err_i2c;
+ goto err_usb3v1;
}

return 0;

+err_usb3v1:
+ regulator_disable(madc->usb3v1);
err_i2c:
twl4030_madc_set_current_generator(madc, 0, 0);
err_current_generator:
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 131b434af994..e08a3c794120 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -221,8 +221,10 @@ static ssize_t iio_debugfs_read_reg(struct file *file, char __user *userbuf,
ret = indio_dev->info->debugfs_reg_access(indio_dev,
indio_dev->cached_reg_addr,
0, &val);
- if (ret)
+ if (ret) {
dev_err(indio_dev->dev.parent, "%s: read failed\n", __func__);
+ return ret;
+ }

len = snprintf(buf, sizeof(buf), "0x%X\n", val);

diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index c2ea4e5666fb..9710cf71054a 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -1990,6 +1990,10 @@ int cdc_parse_cdc_header(struct usb_cdc_parsed_header *hdr,
elength = 1;
goto next_desc;
}
+ if ((buflen < elength) || (elength < 3)) {
+ dev_err(&intf->dev, "invalid descriptor buffer length\n");
+ break;
+ }
if (buffer[1] != USB_DT_CS_INTERFACE) {
dev_err(&intf->dev, "skipping garbage\n");
goto next_desc;
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c
index da5826d788d6..f18491cf793c 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c
@@ -876,7 +876,7 @@ static void brcmf_escan_prep(struct brcmf_cfg80211_info *cfg,

eth_broadcast_addr(params_le->bssid);
params_le->bss_type = DOT11_BSSTYPE_ANY;
- params_le->scan_type = 0;
+ params_le->scan_type = BRCMF_SCANTYPE_ACTIVE;
params_le->channel_num = 0;
params_le->nprobes = cpu_to_le32(-1);
params_le->active_time = cpu_to_le32(-1);
@@ -884,12 +884,9 @@ static void brcmf_escan_prep(struct brcmf_cfg80211_info *cfg,
params_le->home_time = cpu_to_le32(-1);
memset(&params_le->ssid_le, 0, sizeof(params_le->ssid_le));

- /* if request is null exit so it will be all channel broadcast scan */
- if (!request)
- return;
-
n_ssids = request->n_ssids;
n_channels = request->n_channels;
+
/* Copy channel array if applicable */
brcmf_dbg(SCAN, "### List of channelspecs to scan ### %d\n",
n_channels);
@@ -926,16 +923,8 @@ static void brcmf_escan_prep(struct brcmf_cfg80211_info *cfg,
ptr += sizeof(ssid_le);
}
} else {
- brcmf_dbg(SCAN, "Broadcast scan %p\n", request->ssids);
- if ((request->ssids) && request->ssids->ssid_len) {
- brcmf_dbg(SCAN, "SSID %s len=%d\n",
- params_le->ssid_le.SSID,
- request->ssids->ssid_len);
- params_le->ssid_le.SSID_len =
- cpu_to_le32(request->ssids->ssid_len);
- memcpy(&params_le->ssid_le.SSID, request->ssids->ssid,
- request->ssids->ssid_len);
- }
+ brcmf_dbg(SCAN, "Performing passive scan\n");
+ params_le->scan_type = BRCMF_SCANTYPE_PASSIVE;
}
/* Adding mask to channel numbers */
params_le->channel_num =
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwil_types.h b/drivers/net/wireless/brcm80211/brcmfmac/fwil_types.h
index daa427b46712..4320c4cae53e 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwil_types.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwil_types.h
@@ -45,6 +45,11 @@
#define BRCMF_SCAN_PARAMS_COUNT_MASK 0x0000ffff
#define BRCMF_SCAN_PARAMS_NSSID_SHIFT 16

+/* scan type definitions */
+#define BRCMF_SCANTYPE_DEFAULT 0xFF
+#define BRCMF_SCANTYPE_ACTIVE 0
+#define BRCMF_SCANTYPE_PASSIVE 1
+
/* primary (ie tx) key */
#define BRCMF_PRIMARY_KEY (1 << 1)
#define DOT11_BSSTYPE_ANY 2
diff --git a/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c
index d82984912e04..95b82cc132e6 100644
--- a/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c
+++ b/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c
@@ -73,6 +73,7 @@
/* NVM offsets (in words) definitions */
enum wkp_nvm_offsets {
/* NVM HW-Section offset (in words) definitions */
+ SUBSYSTEM_ID = 0x0A,
HW_ADDR = 0x15,

/* NVM SW-Section offset (in words) definitions */
@@ -257,13 +258,12 @@ static u32 iwl_get_channel_flags(u8 ch_num, int ch_idx, bool is_5ghz,
static int iwl_init_channel_map(struct device *dev, const struct iwl_cfg *cfg,
struct iwl_nvm_data *data,
const __le16 * const nvm_ch_flags,
- bool lar_supported)
+ bool lar_supported, bool no_wide_in_5ghz)
{
int ch_idx;
int n_channels = 0;
struct ieee80211_channel *channel;
u16 ch_flags;
- bool is_5ghz;
int num_of_ch, num_2ghz_channels;
const u8 *nvm_chan;

@@ -278,12 +278,20 @@ static int iwl_init_channel_map(struct device *dev, const struct iwl_cfg *cfg,
}

for (ch_idx = 0; ch_idx < num_of_ch; ch_idx++) {
+ bool is_5ghz = (ch_idx >= num_2ghz_channels);
+
ch_flags = __le16_to_cpup(nvm_ch_flags + ch_idx);

- if (ch_idx >= num_2ghz_channels &&
- !data->sku_cap_band_52GHz_enable)
+ if (is_5ghz && !data->sku_cap_band_52GHz_enable)
continue;

+ /* workaround to disable wide channels in 5GHz */
+ if (no_wide_in_5ghz && is_5ghz) {
+ ch_flags &= ~(NVM_CHANNEL_40MHZ |
+ NVM_CHANNEL_80MHZ |
+ NVM_CHANNEL_160MHZ);
+ }
+
if (!lar_supported && !(ch_flags & NVM_CHANNEL_VALID)) {
/*
* Channels might become valid later if lar is
@@ -303,8 +311,8 @@ static int iwl_init_channel_map(struct device *dev, const struct iwl_cfg *cfg,
n_channels++;

channel->hw_value = nvm_chan[ch_idx];
- channel->band = (ch_idx < num_2ghz_channels) ?
- IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
+ channel->band = is_5ghz ?
+ IEEE80211_BAND_5GHZ : IEEE80211_BAND_2GHZ;
channel->center_freq =
ieee80211_channel_to_frequency(
channel->hw_value, channel->band);
@@ -316,7 +324,6 @@ static int iwl_init_channel_map(struct device *dev, const struct iwl_cfg *cfg,
* is not used in mvm, and is used for backwards compatibility
*/
channel->max_power = IWL_DEFAULT_MAX_TX_POWER;
- is_5ghz = channel->band == IEEE80211_BAND_5GHZ;

/* don't put limitations in case we're using LAR */
if (!lar_supported)
@@ -405,7 +412,8 @@ static void iwl_init_vht_hw_capab(const struct iwl_cfg *cfg,
static void iwl_init_sbands(struct device *dev, const struct iwl_cfg *cfg,
struct iwl_nvm_data *data,
const __le16 *ch_section,
- u8 tx_chains, u8 rx_chains, bool lar_supported)
+ u8 tx_chains, u8 rx_chains, bool lar_supported,
+ bool no_wide_in_5ghz)
{
int n_channels;
int n_used = 0;
@@ -414,12 +422,14 @@ static void iwl_init_sbands(struct device *dev, const struct iwl_cfg *cfg,
if (cfg->device_family != IWL_DEVICE_FAMILY_8000)
n_channels = iwl_init_channel_map(
dev, cfg, data,
- &ch_section[NVM_CHANNELS], lar_supported);
+ &ch_section[NVM_CHANNELS], lar_supported,
+ no_wide_in_5ghz);
else
n_channels = iwl_init_channel_map(
dev, cfg, data,
&ch_section[NVM_CHANNELS_FAMILY_8000],
- lar_supported);
+ lar_supported,
+ no_wide_in_5ghz);

sband = &data->bands[IEEE80211_BAND_2GHZ];
sband->band = IEEE80211_BAND_2GHZ;
@@ -582,6 +592,39 @@ static void iwl_set_hw_address_family_8000(struct device *dev,

#define IWL_4165_DEVICE_ID 0x5501

+static bool
+iwl_nvm_no_wide_in_5ghz(struct device *dev, const struct iwl_cfg *cfg,
+ const __le16 *nvm_hw)
+{
+ /*
+ * Workaround a bug in Indonesia SKUs where the regulatory in
+ * some 7000-family OTPs erroneously allow wide channels in
+ * 5GHz. To check for Indonesia, we take the SKU value from
+ * bits 1-4 in the subsystem ID and check if it is either 5 or
+ * 9. In those cases, we need to force-disable wide channels
+ * in 5GHz otherwise the FW will throw a sysassert when we try
+ * to use them.
+ */
+ if (cfg->device_family == IWL_DEVICE_FAMILY_7000) {
+ /*
+ * Unlike the other sections in the NVM, the hw
+ * section uses big-endian.
+ */
+ u16 subsystem_id = be16_to_cpup((const __be16 *)nvm_hw
+ + SUBSYSTEM_ID);
+ u8 sku = (subsystem_id & 0x1e) >> 1;
+
+ if (sku == 5 || sku == 9) {
+ IWL_DEBUG_EEPROM(dev,
+ "disabling wide channels in 5GHz (0x%0x %d)\n",
+ subsystem_id, sku);
+ return true;
+ }
+ }
+
+ return false;
+}
+
struct iwl_nvm_data *
iwl_parse_nvm_data(struct device *dev, const struct iwl_cfg *cfg,
const __le16 *nvm_hw, const __le16 *nvm_sw,
@@ -591,6 +634,7 @@ iwl_parse_nvm_data(struct device *dev, const struct iwl_cfg *cfg,
u32 mac_addr0, u32 mac_addr1, u32 hw_id)
{
struct iwl_nvm_data *data;
+ bool no_wide_in_5ghz = iwl_nvm_no_wide_in_5ghz(dev, cfg, nvm_hw);
u32 sku;
u32 radio_cfg;
u16 lar_config;
@@ -657,7 +701,8 @@ iwl_parse_nvm_data(struct device *dev, const struct iwl_cfg *cfg,
iwl_set_hw_address(cfg, data, nvm_hw);

iwl_init_sbands(dev, cfg, data, nvm_sw,
- tx_chains, rx_chains, lar_fw_supported);
+ tx_chains, rx_chains, lar_fw_supported,
+ no_wide_in_5ghz);
} else {
u16 lar_offset = data->nvm_version < 0xE39 ?
NVM_LAR_OFFSET_FAMILY_8000_OLD :
@@ -673,7 +718,8 @@ iwl_parse_nvm_data(struct device *dev, const struct iwl_cfg *cfg,

iwl_init_sbands(dev, cfg, data, regulatory,
tx_chains, rx_chains,
- lar_fw_supported && data->lar_enabled);
+ lar_fw_supported && data->lar_enabled,
+ no_wide_in_5ghz);
}

data->calib_version = 255;
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index b8a5a8e8f57d..88cf4f5025b0 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -14,6 +14,7 @@
#ifndef _NVME_H
#define _NVME_H

+#include <linux/mutex.h>
#include <linux/nvme.h>
#include <linux/pci.h>
#include <linux/kref.h>
@@ -62,6 +63,7 @@ struct nvme_dev {
struct work_struct reset_work;
struct work_struct probe_work;
struct work_struct scan_work;
+ struct mutex shutdown_lock;
char name[12];
char serial[20];
char model[40];
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 4c673d45f1bd..669edbd47602 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -2954,6 +2954,7 @@ static void nvme_dev_shutdown(struct nvme_dev *dev)

nvme_dev_list_remove(dev);

+ mutex_lock(&dev->shutdown_lock);
if (pci_is_enabled(to_pci_dev(dev->dev))) {
nvme_freeze_queues(dev);
csts = readl(&dev->bar->csts);
@@ -2972,6 +2973,7 @@ static void nvme_dev_shutdown(struct nvme_dev *dev)

for (i = dev->queue_count - 1; i >= 0; i--)
nvme_clear_queue(dev->queues[i]);
+ mutex_unlock(&dev->shutdown_lock);
}

static void nvme_dev_remove(struct nvme_dev *dev)
@@ -3328,6 +3330,7 @@ static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id)

INIT_LIST_HEAD(&dev->namespaces);
INIT_WORK(&dev->reset_work, nvme_reset_work);
+ mutex_init(&dev->shutdown_lock);
dev->dev = get_device(&pdev->dev);
pci_set_drvdata(pdev, dev);

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 8750c86f95f9..7e1681cf287c 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -2878,8 +2878,6 @@ static int sd_revalidate_disk(struct gendisk *disk)
sd_read_write_same(sdkp, buffer);
}

- sdkp->first_scan = 0;
-
/*
* We now have all cache related info, determine how we deal
* with flush requests.
@@ -2894,7 +2892,7 @@ static int sd_revalidate_disk(struct gendisk *disk)
q->limits.max_dev_sectors = logical_to_sectors(sdp, dev_max);

/*
- * Use the device's preferred I/O size for reads and writes
+ * Determine the device's preferred I/O size for reads and writes
* unless the reported value is unreasonably small, large, or
* garbage.
*/
@@ -2908,8 +2906,19 @@ static int sd_revalidate_disk(struct gendisk *disk)
rw_max = min_not_zero(logical_to_sectors(sdp, dev_max),
(sector_t)BLK_DEF_MAX_SECTORS);

- /* Combine with controller limits */
- q->limits.max_sectors = min(rw_max, queue_max_hw_sectors(q));
+ /* Do not exceed controller limit */
+ rw_max = min(rw_max, queue_max_hw_sectors(q));
+
+ /*
+ * Only update max_sectors if previously unset or if the current value
+ * exceeds the capabilities of the hardware.
+ */
+ if (sdkp->first_scan ||
+ q->limits.max_sectors > q->limits.max_dev_sectors ||
+ q->limits.max_sectors > q->limits.max_hw_sectors)
+ q->limits.max_sectors = rw_max;
+
+ sdkp->first_scan = 0;

set_capacity(disk, logical_to_sectors(sdp, sdkp->capacity));
sd_config_write_same(sdkp);
diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
index 20314ff08be0..abc66908681d 100644
--- a/drivers/staging/iio/adc/ad7192.c
+++ b/drivers/staging/iio/adc/ad7192.c
@@ -205,11 +205,9 @@ static int ad7192_setup(struct ad7192_state *st,
struct iio_dev *indio_dev = spi_get_drvdata(st->sd.spi);
unsigned long long scale_uv;
int i, ret, id;
- u8 ones[6];

/* reset the serial interface */
- memset(&ones, 0xFF, 6);
- ret = spi_write(st->sd.spi, &ones, 6);
+ ret = ad_sd_reset(&st->sd, 48);
if (ret < 0)
goto out;
usleep_range(500, 1000); /* Wait for at least 500us */
diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
index 325cbc9c35d8..d9d048fc9082 100644
--- a/drivers/usb/core/config.c
+++ b/drivers/usb/core/config.c
@@ -609,15 +609,23 @@ static int usb_parse_configuration(struct usb_device *dev, int cfgidx,

} else if (header->bDescriptorType ==
USB_DT_INTERFACE_ASSOCIATION) {
+ struct usb_interface_assoc_descriptor *d;
+
+ d = (struct usb_interface_assoc_descriptor *)header;
+ if (d->bLength < USB_DT_INTERFACE_ASSOCIATION_SIZE) {
+ dev_warn(ddev,
+ "config %d has an invalid interface association descriptor of length %d, skipping\n",
+ cfgno, d->bLength);
+ continue;
+ }
+
if (iad_num == USB_MAXIADS) {
dev_warn(ddev, "found more Interface "
"Association Descriptors "
"than allocated for in "
"configuration %d\n", cfgno);
} else {
- config->intf_assoc[iad_num] =
- (struct usb_interface_assoc_descriptor
- *)header;
+ config->intf_assoc[iad_num] = d;
iad_num++;
}

@@ -818,7 +826,7 @@ int usb_get_configuration(struct usb_device *dev)
}

if (dev->quirks & USB_QUIRK_DELAY_INIT)
- msleep(100);
+ msleep(200);

result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno,
bigbuffer, length);
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 873ba02d59e6..bd9419213d06 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -1417,7 +1417,11 @@ static int proc_do_submiturb(struct usb_dev_state *ps, struct usbdevfs_urb *uurb
totlen += isopkt[u].length;
}
u *= sizeof(struct usb_iso_packet_descriptor);
- uurb->buffer_length = totlen;
+ if (totlen <= uurb->buffer_length)
+ uurb->buffer_length = totlen;
+ else
+ WARN_ONCE(1, "uurb->buffer_length is too short %d vs %d",
+ totlen, uurb->buffer_length);
break;

default:
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index cdf4be3939f5..51bba58c0c3b 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -4761,7 +4761,7 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
goto loop;

if (udev->quirks & USB_QUIRK_DELAY_INIT)
- msleep(1000);
+ msleep(2000);

/* consecutive bus-powered hubs aren't reliable; they can
* violate the voltage drop budget. if the new child has
diff --git a/drivers/usb/gadget/function/f_mass_storage.c b/drivers/usb/gadget/function/f_mass_storage.c
index a069726da72a..4dd3c7672247 100644
--- a/drivers/usb/gadget/function/f_mass_storage.c
+++ b/drivers/usb/gadget/function/f_mass_storage.c
@@ -306,8 +306,6 @@ struct fsg_common {
struct completion thread_notifier;
struct task_struct *thread_task;

- /* Callback functions. */
- const struct fsg_operations *ops;
/* Gadget's private data. */
void *private_data;

@@ -2504,6 +2502,7 @@ static void handle_exception(struct fsg_common *common)
static int fsg_main_thread(void *common_)
{
struct fsg_common *common = common_;
+ int i;

/*
* Allow the thread to be killed by a signal, but set the signal mask
@@ -2565,21 +2564,16 @@ static int fsg_main_thread(void *common_)
common->thread_task = NULL;
spin_unlock_irq(&common->lock);

- if (!common->ops || !common->ops->thread_exits
- || common->ops->thread_exits(common) < 0) {
- int i;
+ /* Eject media from all LUNs */

- down_write(&common->filesem);
- for (i = 0; i < ARRAY_SIZE(common->luns); --i) {
- struct fsg_lun *curlun = common->luns[i];
- if (!curlun || !fsg_lun_is_open(curlun))
- continue;
+ down_write(&common->filesem);
+ for (i = 0; i < ARRAY_SIZE(common->luns); i++) {
+ struct fsg_lun *curlun = common->luns[i];

+ if (curlun && fsg_lun_is_open(curlun))
fsg_lun_close(curlun);
- curlun->unit_attention_data = SS_MEDIUM_NOT_PRESENT;
- }
- up_write(&common->filesem);
}
+ up_write(&common->filesem);

/* Let fsg_unbind() know the thread has exited */
complete_and_exit(&common->thread_notifier, 0);
@@ -2785,13 +2779,6 @@ void fsg_common_remove_luns(struct fsg_common *common)
}
EXPORT_SYMBOL_GPL(fsg_common_remove_luns);

-void fsg_common_set_ops(struct fsg_common *common,
- const struct fsg_operations *ops)
-{
- common->ops = ops;
-}
-EXPORT_SYMBOL_GPL(fsg_common_set_ops);
-
void fsg_common_free_buffers(struct fsg_common *common)
{
_fsg_common_free_buffers(common->buffhds, common->fsg_num_buffers);
diff --git a/drivers/usb/gadget/function/f_mass_storage.h b/drivers/usb/gadget/function/f_mass_storage.h
index b6a9918eaefb..dfa2176f43c2 100644
--- a/drivers/usb/gadget/function/f_mass_storage.h
+++ b/drivers/usb/gadget/function/f_mass_storage.h
@@ -60,17 +60,6 @@ struct fsg_module_parameters {
struct fsg_common;

/* FSF callback functions */
-struct fsg_operations {
- /*
- * Callback function to call when thread exits. If no
- * callback is set or it returns value lower then zero MSF
- * will force eject all LUNs it operates on (including those
- * marked as non-removable or with prevent_medium_removal flag
- * set).
- */
- int (*thread_exits)(struct fsg_common *common);
-};
-
struct fsg_lun_opts {
struct config_group group;
struct fsg_lun *lun;
@@ -141,9 +130,6 @@ void fsg_common_remove_lun(struct fsg_lun *lun);

void fsg_common_remove_luns(struct fsg_common *common);

-void fsg_common_set_ops(struct fsg_common *common,
- const struct fsg_operations *ops);
-
int fsg_common_create_lun(struct fsg_common *common, struct fsg_lun_config *cfg,
unsigned int id, const char *name,
const char **name_pfx);
diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c
index 43ce2cfcdb4d..b6df47aa25af 100644
--- a/drivers/usb/gadget/legacy/inode.c
+++ b/drivers/usb/gadget/legacy/inode.c
@@ -27,7 +27,7 @@
#include <linux/mmu_context.h>
#include <linux/aio.h>
#include <linux/uio.h>
-
+#include <linux/delay.h>
#include <linux/device.h>
#include <linux/moduleparam.h>

@@ -116,6 +116,7 @@ enum ep0_state {
struct dev_data {
spinlock_t lock;
atomic_t count;
+ int udc_usage;
enum ep0_state state; /* P: lock */
struct usb_gadgetfs_event event [N_EVENT];
unsigned ev_next;
@@ -512,9 +513,9 @@ static void ep_aio_complete(struct usb_ep *ep, struct usb_request *req)
INIT_WORK(&priv->work, ep_user_copy_worker);
schedule_work(&priv->work);
}
- spin_unlock(&epdata->dev->lock);

usb_ep_free_request(ep, req);
+ spin_unlock(&epdata->dev->lock);
put_ep(epdata);
}

@@ -938,9 +939,11 @@ ep0_read (struct file *fd, char __user *buf, size_t len, loff_t *ptr)
struct usb_request *req = dev->req;

if ((retval = setup_req (ep, req, 0)) == 0) {
+ ++dev->udc_usage;
spin_unlock_irq (&dev->lock);
retval = usb_ep_queue (ep, req, GFP_KERNEL);
spin_lock_irq (&dev->lock);
+ --dev->udc_usage;
}
dev->state = STATE_DEV_CONNECTED;

@@ -982,11 +985,14 @@ ep0_read (struct file *fd, char __user *buf, size_t len, loff_t *ptr)
retval = -EIO;
else {
len = min (len, (size_t)dev->req->actual);
-// FIXME don't call this with the spinlock held ...
+ ++dev->udc_usage;
+ spin_unlock_irq(&dev->lock);
if (copy_to_user (buf, dev->req->buf, len))
retval = -EFAULT;
else
retval = len;
+ spin_lock_irq(&dev->lock);
+ --dev->udc_usage;
clean_req (dev->gadget->ep0, dev->req);
/* NOTE userspace can't yet choose to stall */
}
@@ -1130,6 +1136,7 @@ ep0_write (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
retval = setup_req (dev->gadget->ep0, dev->req, len);
if (retval == 0) {
dev->state = STATE_DEV_CONNECTED;
+ ++dev->udc_usage;
spin_unlock_irq (&dev->lock);
if (copy_from_user (dev->req->buf, buf, len))
retval = -EFAULT;
@@ -1140,10 +1147,10 @@ ep0_write (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
dev->gadget->ep0, dev->req,
GFP_KERNEL);
}
+ spin_lock_irq(&dev->lock);
+ --dev->udc_usage;
if (retval < 0) {
- spin_lock_irq (&dev->lock);
clean_req (dev->gadget->ep0, dev->req);
- spin_unlock_irq (&dev->lock);
} else
retval = len;

@@ -1240,9 +1247,21 @@ static long dev_ioctl (struct file *fd, unsigned code, unsigned long value)
struct usb_gadget *gadget = dev->gadget;
long ret = -ENOTTY;

- if (gadget->ops->ioctl)
+ spin_lock_irq(&dev->lock);
+ if (dev->state == STATE_DEV_OPENED ||
+ dev->state == STATE_DEV_UNBOUND) {
+ /* Not bound to a UDC */
+ } else if (gadget->ops->ioctl) {
+ ++dev->udc_usage;
+ spin_unlock_irq(&dev->lock);
+
ret = gadget->ops->ioctl (gadget, code, value);

+ spin_lock_irq(&dev->lock);
+ --dev->udc_usage;
+ }
+ spin_unlock_irq(&dev->lock);
+
return ret;
}

@@ -1460,10 +1479,12 @@ delegate:
if (value < 0)
break;

+ ++dev->udc_usage;
spin_unlock (&dev->lock);
value = usb_ep_queue (gadget->ep0, dev->req,
GFP_KERNEL);
spin_lock (&dev->lock);
+ --dev->udc_usage;
if (value < 0) {
clean_req (gadget->ep0, dev->req);
break;
@@ -1487,8 +1508,12 @@ delegate:
req->length = value;
req->zero = value < w_length;

+ ++dev->udc_usage;
spin_unlock (&dev->lock);
value = usb_ep_queue (gadget->ep0, req, GFP_KERNEL);
+ spin_lock(&dev->lock);
+ --dev->udc_usage;
+ spin_unlock(&dev->lock);
if (value < 0) {
DBG (dev, "ep_queue --> %d\n", value);
req->status = 0;
@@ -1515,21 +1540,24 @@ static void destroy_ep_files (struct dev_data *dev)
/* break link to FS */
ep = list_first_entry (&dev->epfiles, struct ep_data, epfiles);
list_del_init (&ep->epfiles);
+ spin_unlock_irq (&dev->lock);
+
dentry = ep->dentry;
ep->dentry = NULL;
parent = d_inode(dentry->d_parent);

/* break link to controller */
+ mutex_lock(&ep->lock);
if (ep->state == STATE_EP_ENABLED)
(void) usb_ep_disable (ep->ep);
ep->state = STATE_EP_UNBOUND;
usb_ep_free_request (ep->ep, ep->req);
ep->ep = NULL;
+ mutex_unlock(&ep->lock);
+
wake_up (&ep->wait);
put_ep (ep);

- spin_unlock_irq (&dev->lock);
-
/* break link to dcache */
mutex_lock (&parent->i_mutex);
d_delete (dentry);
@@ -1600,6 +1628,11 @@ gadgetfs_unbind (struct usb_gadget *gadget)

spin_lock_irq (&dev->lock);
dev->state = STATE_DEV_UNBOUND;
+ while (dev->udc_usage > 0) {
+ spin_unlock_irq(&dev->lock);
+ usleep_range(1000, 2000);
+ spin_lock_irq(&dev->lock);
+ }
spin_unlock_irq (&dev->lock);

destroy_ep_files (dev);
diff --git a/drivers/usb/gadget/legacy/mass_storage.c b/drivers/usb/gadget/legacy/mass_storage.c
index 99aa22c81770..b0099d7c3886 100644
--- a/drivers/usb/gadget/legacy/mass_storage.c
+++ b/drivers/usb/gadget/legacy/mass_storage.c
@@ -107,15 +107,6 @@ static unsigned int fsg_num_buffers = CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS;

FSG_MODULE_PARAMETERS(/* no prefix */, mod_data);

-static unsigned long msg_registered;
-static void msg_cleanup(void);
-
-static int msg_thread_exits(struct fsg_common *common)
-{
- msg_cleanup();
- return 0;
-}
-
static int msg_do_config(struct usb_configuration *c)
{
struct fsg_opts *opts;
@@ -154,9 +145,6 @@ static struct usb_configuration msg_config_driver = {

static int msg_bind(struct usb_composite_dev *cdev)
{
- static const struct fsg_operations ops = {
- .thread_exits = msg_thread_exits,
- };
struct fsg_opts *opts;
struct fsg_config config;
int status;
@@ -173,8 +161,6 @@ static int msg_bind(struct usb_composite_dev *cdev)
if (status)
goto fail;

- fsg_common_set_ops(opts->common, &ops);
-
status = fsg_common_set_cdev(opts->common, cdev, config.can_stall);
if (status)
goto fail_set_cdev;
@@ -210,7 +196,6 @@ static int msg_bind(struct usb_composite_dev *cdev)
usb_composite_overwrite_options(cdev, &coverwrite);
dev_info(&cdev->gadget->dev,
DRIVER_DESC ", version: " DRIVER_VERSION "\n");
- set_bit(0, &msg_registered);
return 0;

fail_otg_desc:
@@ -261,9 +246,8 @@ static int __init msg_init(void)
}
module_init(msg_init);

-static void msg_cleanup(void)
+static void __exit msg_cleanup(void)
{
- if (test_and_clear_bit(0, &msg_registered))
- usb_composite_unregister(&msg_driver);
+ usb_composite_unregister(&msg_driver);
}
module_exit(msg_cleanup);
diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c b/drivers/usb/gadget/udc/atmel_usba_udc.c
index f92f5aff0dd5..585cb8734f50 100644
--- a/drivers/usb/gadget/udc/atmel_usba_udc.c
+++ b/drivers/usb/gadget/udc/atmel_usba_udc.c
@@ -28,6 +28,8 @@
#include <asm/gpio.h>

#include "atmel_usba_udc.h"
+#define USBA_VBUS_IRQFLAGS (IRQF_ONESHOT \
+ | IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING)

#ifdef CONFIG_USB_GADGET_DEBUG_FS
#include <linux/debugfs.h>
@@ -2185,7 +2187,7 @@ static int usba_udc_probe(struct platform_device *pdev)
IRQ_NOAUTOEN);
ret = devm_request_threaded_irq(&pdev->dev,
gpio_to_irq(udc->vbus_pin), NULL,
- usba_vbus_irq_thread, IRQF_ONESHOT,
+ usba_vbus_irq_thread, USBA_VBUS_IRQFLAGS,
"atmel_usba_udc", udc);
if (ret) {
udc->vbus_pin = -ENODEV;
diff --git a/drivers/usb/gadget/udc/dummy_hcd.c b/drivers/usb/gadget/udc/dummy_hcd.c
index 64f404a1a072..db645c38055d 100644
--- a/drivers/usb/gadget/udc/dummy_hcd.c
+++ b/drivers/usb/gadget/udc/dummy_hcd.c
@@ -237,6 +237,8 @@ struct dummy_hcd {

struct usb_device *udev;
struct list_head urbp_list;
+ struct urbp *next_frame_urbp;
+
u32 stream_en_ep;
u8 num_stream[30 / 2];

@@ -253,11 +255,13 @@ struct dummy {
*/
struct dummy_ep ep[DUMMY_ENDPOINTS];
int address;
+ int callback_usage;
struct usb_gadget gadget;
struct usb_gadget_driver *driver;
struct dummy_request fifo_req;
u8 fifo_buf[FIFO_SIZE];
u16 devstatus;
+ unsigned ints_enabled:1;
unsigned udc_suspended:1;
unsigned pullup:1;

@@ -440,18 +444,27 @@ static void set_link_state(struct dummy_hcd *dum_hcd)
(~dum_hcd->old_status) & dum_hcd->port_status;

/* Report reset and disconnect events to the driver */
- if (dum->driver && (disconnect || reset)) {
+ if (dum->ints_enabled && (disconnect || reset)) {
stop_activity(dum);
+ ++dum->callback_usage;
+ spin_unlock(&dum->lock);
if (reset)
usb_gadget_udc_reset(&dum->gadget, dum->driver);
else
dum->driver->disconnect(&dum->gadget);
+ spin_lock(&dum->lock);
+ --dum->callback_usage;
}
- } else if (dum_hcd->active != dum_hcd->old_active) {
+ } else if (dum_hcd->active != dum_hcd->old_active &&
+ dum->ints_enabled) {
+ ++dum->callback_usage;
+ spin_unlock(&dum->lock);
if (dum_hcd->old_active && dum->driver->suspend)
dum->driver->suspend(&dum->gadget);
else if (!dum_hcd->old_active && dum->driver->resume)
dum->driver->resume(&dum->gadget);
+ spin_lock(&dum->lock);
+ --dum->callback_usage;
}

dum_hcd->old_status = dum_hcd->port_status;
@@ -967,8 +980,11 @@ static int dummy_udc_start(struct usb_gadget *g,
* can't enumerate without help from the driver we're binding.
*/

+ spin_lock_irq(&dum->lock);
dum->devstatus = 0;
dum->driver = driver;
+ dum->ints_enabled = 1;
+ spin_unlock_irq(&dum->lock);

return 0;
}
@@ -979,6 +995,16 @@ static int dummy_udc_stop(struct usb_gadget *g)
struct dummy *dum = dum_hcd->dum;

spin_lock_irq(&dum->lock);
+ dum->ints_enabled = 0;
+ stop_activity(dum);
+
+ /* emulate synchronize_irq(): wait for callbacks to finish */
+ while (dum->callback_usage > 0) {
+ spin_unlock_irq(&dum->lock);
+ usleep_range(1000, 2000);
+ spin_lock_irq(&dum->lock);
+ }
+
dum->driver = NULL;
spin_unlock_irq(&dum->lock);

@@ -1032,7 +1058,12 @@ static int dummy_udc_probe(struct platform_device *pdev)
memzero_explicit(&dum->gadget, sizeof(struct usb_gadget));
dum->gadget.name = gadget_name;
dum->gadget.ops = &dummy_ops;
- dum->gadget.max_speed = USB_SPEED_SUPER;
+ if (mod_data.is_super_speed)
+ dum->gadget.max_speed = USB_SPEED_SUPER;
+ else if (mod_data.is_high_speed)
+ dum->gadget.max_speed = USB_SPEED_HIGH;
+ else
+ dum->gadget.max_speed = USB_SPEED_FULL;

dum->gadget.dev.parent = &pdev->dev;
init_dummy_udc_hw(dum);
@@ -1241,6 +1272,8 @@ static int dummy_urb_enqueue(

list_add_tail(&urbp->urbp_list, &dum_hcd->urbp_list);
urb->hcpriv = urbp;
+ if (!dum_hcd->next_frame_urbp)
+ dum_hcd->next_frame_urbp = urbp;
if (usb_pipetype(urb->pipe) == PIPE_CONTROL)
urb->error_count = 1; /* mark as a new urb */

@@ -1517,6 +1550,8 @@ static struct dummy_ep *find_endpoint(struct dummy *dum, u8 address)
if (!is_active((dum->gadget.speed == USB_SPEED_SUPER ?
dum->ss_hcd : dum->hs_hcd)))
return NULL;
+ if (!dum->ints_enabled)
+ return NULL;
if ((address & ~USB_DIR_IN) == 0)
return &dum->ep[0];
for (i = 1; i < DUMMY_ENDPOINTS; i++) {
@@ -1758,6 +1793,7 @@ static void dummy_timer(unsigned long _dum_hcd)
spin_unlock_irqrestore(&dum->lock, flags);
return;
}
+ dum_hcd->next_frame_urbp = NULL;

for (i = 0; i < DUMMY_ENDPOINTS; i++) {
if (!ep_info[i].name)
@@ -1774,6 +1810,10 @@ restart:
int type;
int status = -EINPROGRESS;

+ /* stop when we reach URBs queued after the timer interrupt */
+ if (urbp == dum_hcd->next_frame_urbp)
+ break;
+
urb = urbp->urb;
if (urb->unlinked)
goto return_urb;
@@ -1853,10 +1893,12 @@ restart:
* until setup() returns; no reentrancy issues etc.
*/
if (value > 0) {
+ ++dum->callback_usage;
spin_unlock(&dum->lock);
value = dum->driver->setup(&dum->gadget,
&setup);
spin_lock(&dum->lock);
+ --dum->callback_usage;

if (value >= 0) {
/* no delays (max 64KB data stage) */
@@ -2564,8 +2606,6 @@ static struct hc_driver dummy_hcd = {
.product_desc = "Dummy host controller",
.hcd_priv_size = sizeof(struct dummy_hcd),

- .flags = HCD_USB3 | HCD_SHARED,
-
.reset = dummy_setup,
.start = dummy_start,
.stop = dummy_stop,
@@ -2594,8 +2634,12 @@ static int dummy_hcd_probe(struct platform_device *pdev)
dev_info(&pdev->dev, "%s, driver " DRIVER_VERSION "\n", driver_desc);
dum = *((void **)dev_get_platdata(&pdev->dev));

- if (!mod_data.is_super_speed)
+ if (mod_data.is_super_speed)
+ dummy_hcd.flags = HCD_USB3 | HCD_SHARED;
+ else if (mod_data.is_high_speed)
dummy_hcd.flags = HCD_USB2;
+ else
+ dummy_hcd.flags = HCD_USB11;
hs_hcd = usb_create_hcd(&dummy_hcd, &pdev->dev, dev_name(&pdev->dev));
if (!hs_hcd)
return -ENOMEM;
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index 1fc6f478a02c..89e9494c3245 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -969,7 +969,7 @@ EXPORT_SYMBOL_GPL(usb_disable_xhci_ports);
*
* Takes care of the handoff between the Pre-OS (i.e. BIOS) and the OS.
* It signals to the BIOS that the OS wants control of the host controller,
- * and then waits 5 seconds for the BIOS to hand over control.
+ * and then waits 1 second for the BIOS to hand over control.
* If we timeout, assume the BIOS is broken and take control anyway.
*/
static void quirk_usb_handoff_xhci(struct pci_dev *pdev)
@@ -1015,9 +1015,9 @@ static void quirk_usb_handoff_xhci(struct pci_dev *pdev)
if (val & XHCI_HC_BIOS_OWNED) {
writel(val | XHCI_HC_OS_OWNED, base + ext_cap_offset);

- /* Wait for 5 seconds with 10 microsecond polling interval */
+ /* Wait for 1 second with 10 microsecond polling interval */
timeout = handshake(base + ext_cap_offset, XHCI_HC_BIOS_OWNED,
- 0, 5000, 10);
+ 0, 1000000, 10);

/* Assume a buggy BIOS and take HC ownership anyway */
if (timeout) {
@@ -1046,7 +1046,7 @@ hc_init:
* operational or runtime registers. Wait 5 seconds and no more.
*/
timeout = handshake(op_reg_base + XHCI_STS_OFFSET, XHCI_STS_CNR, 0,
- 5000, 10);
+ 5000000, 10);
/* Assume a buggy HC and start HC initialization anyway */
if (timeout) {
val = readl(op_reg_base + XHCI_STS_OFFSET);
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index fc2ee6c272c4..1715705acc59 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1490,7 +1490,7 @@ struct xhci_bus_state {

static inline unsigned int hcd_index(struct usb_hcd *hcd)
{
- if (hcd->speed == HCD_USB3)
+ if (hcd->speed >= HCD_USB3)
return 0;
else
return 1;
diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c
index 36e5b5c530bd..d95cd1a72b66 100644
--- a/drivers/usb/renesas_usbhs/fifo.c
+++ b/drivers/usb/renesas_usbhs/fifo.c
@@ -285,11 +285,26 @@ static void usbhsf_fifo_clear(struct usbhs_pipe *pipe,
struct usbhs_fifo *fifo)
{
struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
+ int ret = 0;

- if (!usbhs_pipe_is_dcp(pipe))
- usbhsf_fifo_barrier(priv, fifo);
+ if (!usbhs_pipe_is_dcp(pipe)) {
+ /*
+ * This driver checks the pipe condition first to avoid -EBUSY
+ * from usbhsf_fifo_barrier() with about 10 msec delay in
+ * the interrupt handler if the pipe is RX direction and empty.
+ */
+ if (usbhs_pipe_is_dir_in(pipe))
+ ret = usbhs_pipe_is_accessible(pipe);
+ if (!ret)
+ ret = usbhsf_fifo_barrier(priv, fifo);
+ }

- usbhs_write(priv, fifo->ctr, BCLR);
+ /*
+ * if non-DCP pipe, this driver should set BCLR when
+ * usbhsf_fifo_barrier() returns 0.
+ */
+ if (!ret)
+ usbhs_write(priv, fifo->ctr, BCLR);
}

static int usbhsf_fifo_rcv_len(struct usbhs_priv *priv,
diff --git a/drivers/usb/storage/uas-detect.h b/drivers/usb/storage/uas-detect.h
index f58caa9e6a27..a155cd02bce2 100644
--- a/drivers/usb/storage/uas-detect.h
+++ b/drivers/usb/storage/uas-detect.h
@@ -9,7 +9,8 @@ static int uas_is_interface(struct usb_host_interface *intf)
intf->desc.bInterfaceProtocol == USB_PR_UAS);
}

-static int uas_find_uas_alt_setting(struct usb_interface *intf)
+static struct usb_host_interface *uas_find_uas_alt_setting(
+ struct usb_interface *intf)
{
int i;

@@ -17,10 +18,10 @@ static int uas_find_uas_alt_setting(struct usb_interface *intf)
struct usb_host_interface *alt = &intf->altsetting[i];

if (uas_is_interface(alt))
- return alt->desc.bAlternateSetting;
+ return alt;
}

- return -ENODEV;
+ return NULL;
}

static int uas_find_endpoints(struct usb_host_interface *alt,
@@ -58,14 +59,14 @@ static int uas_use_uas_driver(struct usb_interface *intf,
struct usb_device *udev = interface_to_usbdev(intf);
struct usb_hcd *hcd = bus_to_hcd(udev->bus);
unsigned long flags = id->driver_info;
- int r, alt;
-
+ struct usb_host_interface *alt;
+ int r;

alt = uas_find_uas_alt_setting(intf);
- if (alt < 0)
+ if (!alt)
return 0;

- r = uas_find_endpoints(&intf->altsetting[alt], eps);
+ r = uas_find_endpoints(alt, eps);
if (r < 0)
return 0;

diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c
index e26e32169a36..f952635ebe5f 100644
--- a/drivers/usb/storage/uas.c
+++ b/drivers/usb/storage/uas.c
@@ -849,14 +849,14 @@ MODULE_DEVICE_TABLE(usb, uas_usb_ids);
static int uas_switch_interface(struct usb_device *udev,
struct usb_interface *intf)
{
- int alt;
+ struct usb_host_interface *alt;

alt = uas_find_uas_alt_setting(intf);
- if (alt < 0)
- return alt;
+ if (!alt)
+ return -ENODEV;

- return usb_set_interface(udev,
- intf->altsetting[0].desc.bInterfaceNumber, alt);
+ return usb_set_interface(udev, alt->desc.bInterfaceNumber,
+ alt->desc.bAlternateSetting);
}

static int uas_configure_endpoints(struct uas_dev_info *devinfo)
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index 640a2e2ec04d..fb96755550ec 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -1379,6 +1379,13 @@ UNUSUAL_DEV( 0x0bc2, 0x3010, 0x0000, 0x0000,
USB_SC_DEVICE, USB_PR_DEVICE, NULL,
US_FL_SANE_SENSE ),

+/* Reported by Kris Lindgren <kris.lindgren@gmail.com> */
+UNUSUAL_DEV( 0x0bc2, 0x3332, 0x0000, 0x9999,
+ "Seagate",
+ "External",
+ USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+ US_FL_NO_WP_DETECT ),
+
UNUSUAL_DEV( 0x0d49, 0x7310, 0x0000, 0x9999,
"Maxtor",
"USB to SATA",
diff --git a/drivers/uwb/hwa-rc.c b/drivers/uwb/hwa-rc.c
index e75bbe5a10cd..1212b4b3c5a9 100644
--- a/drivers/uwb/hwa-rc.c
+++ b/drivers/uwb/hwa-rc.c
@@ -827,6 +827,8 @@ static int hwarc_probe(struct usb_interface *iface,

if (iface->cur_altsetting->desc.bNumEndpoints < 1)
return -ENODEV;
+ if (!usb_endpoint_xfer_int(&iface->cur_altsetting->endpoint[0].desc))
+ return -ENODEV;

result = -ENOMEM;
uwb_rc = uwb_rc_alloc();
diff --git a/drivers/uwb/uwbd.c b/drivers/uwb/uwbd.c
index bdcb13cc1d54..5c9828370217 100644
--- a/drivers/uwb/uwbd.c
+++ b/drivers/uwb/uwbd.c
@@ -303,18 +303,22 @@ static int uwbd(void *param)
/** Start the UWB daemon */
void uwbd_start(struct uwb_rc *rc)
{
- rc->uwbd.task = kthread_run(uwbd, rc, "uwbd");
- if (rc->uwbd.task == NULL)
+ struct task_struct *task = kthread_run(uwbd, rc, "uwbd");
+ if (IS_ERR(task)) {
+ rc->uwbd.task = NULL;
printk(KERN_ERR "UWB: Cannot start management daemon; "
"UWB won't work\n");
- else
+ } else {
+ rc->uwbd.task = task;
rc->uwbd.pid = rc->uwbd.task->pid;
+ }
}

/* Stop the UWB daemon and free any unprocessed events */
void uwbd_stop(struct uwb_rc *rc)
{
- kthread_stop(rc->uwbd.task);
+ if (rc->uwbd.task)
+ kthread_stop(rc->uwbd.task);
uwbd_flush(rc);
}

diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c
index c3fe1e323951..ea2ef0eac0c4 100644
--- a/fs/ext4/acl.c
+++ b/fs/ext4/acl.c
@@ -195,13 +195,6 @@ __ext4_set_acl(handle_t *handle, struct inode *inode, int type,
switch (type) {
case ACL_TYPE_ACCESS:
name_index = EXT4_XATTR_INDEX_POSIX_ACL_ACCESS;
- if (acl) {
- error = posix_acl_update_mode(inode, &inode->i_mode, &acl);
- if (error)
- return error;
- inode->i_ctime = ext4_current_time(inode);
- ext4_mark_inode_dirty(handle, inode);
- }
break;

case ACL_TYPE_DEFAULT:
@@ -234,6 +227,8 @@ ext4_set_acl(struct inode *inode, struct posix_acl *acl, int type)
{
handle_t *handle;
int error, retries = 0;
+ umode_t mode = inode->i_mode;
+ int update_mode = 0;

retry:
handle = ext4_journal_start(inode, EXT4_HT_XATTR,
@@ -241,7 +236,20 @@ retry:
if (IS_ERR(handle))
return PTR_ERR(handle);

+ if ((type == ACL_TYPE_ACCESS) && acl) {
+ error = posix_acl_update_mode(inode, &mode, &acl);
+ if (error)
+ goto out_stop;
+ update_mode = 1;
+ }
+
error = __ext4_set_acl(handle, inode, type, acl);
+ if (!error && update_mode) {
+ inode->i_mode = mode;
+ inode->i_ctime = ext4_current_time(inode);
+ ext4_mark_inode_dirty(handle, inode);
+ }
+out_stop:
ext4_journal_stop(handle);
if (error == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries))
goto retry;
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 1796d1bd9a1d..194a6baa4283 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -1946,15 +1946,29 @@ static int ext4_writepage(struct page *page,
static int mpage_submit_page(struct mpage_da_data *mpd, struct page *page)
{
int len;
- loff_t size = i_size_read(mpd->inode);
+ loff_t size;
int err;

BUG_ON(page->index != mpd->first_page);
- if (page->index == size >> PAGE_CACHE_SHIFT)
- len = size & ~PAGE_CACHE_MASK;
- else
- len = PAGE_CACHE_SIZE;
clear_page_dirty_for_io(page);
+ /*
+ * We have to be very careful here! Nothing protects writeback path
+ * against i_size changes and the page can be writeably mapped into
+ * page tables. So an application can be growing i_size and writing
+ * data through mmap while writeback runs. clear_page_dirty_for_io()
+ * write-protects our page in page tables and the page cannot get
+ * written to again until we release page lock. So only after
+ * clear_page_dirty_for_io() we are safe to sample i_size for
+ * ext4_bio_write_page() to zero-out tail of the written page. We rely
+ * on the barrier provided by TestClearPageDirty in
+ * clear_page_dirty_for_io() to make sure i_size is really sampled only
+ * after page tables are updated.
+ */
+ size = i_size_read(mpd->inode);
+ if (page->index == size >> PAGE_SHIFT)
+ len = size & ~PAGE_MASK;
+ else
+ len = PAGE_SIZE;
err = ext4_bio_write_page(&mpd->io_submit, page, len, mpd->wbc, false);
if (!err)
mpd->wbc->nr_to_write--;
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 1d007e853f5c..6445d84266fa 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -3506,6 +3506,12 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
int credits;
u8 old_file_type;

+ if ((ext4_encrypted_inode(old_dir) &&
+ !ext4_has_encryption_key(old_dir)) ||
+ (ext4_encrypted_inode(new_dir) &&
+ !ext4_has_encryption_key(new_dir)))
+ return -ENOKEY;
+
retval = dquot_initialize(old.dir);
if (retval)
return retval;
@@ -3706,6 +3712,12 @@ static int ext4_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
u8 new_file_type;
int retval;

+ if ((ext4_encrypted_inode(old_dir) &&
+ !ext4_has_encryption_key(old_dir)) ||
+ (ext4_encrypted_inode(new_dir) &&
+ !ext4_has_encryption_key(new_dir)))
+ return -ENOKEY;
+
if ((ext4_encrypted_inode(old_dir) ||
ext4_encrypted_inode(new_dir)) &&
(old_dir != new_dir) &&
diff --git a/fs/xattr.c b/fs/xattr.c
index f0da9d24e9ca..76f01bf4b048 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -163,7 +163,7 @@ xattr_getsecurity(struct inode *inode, const char *name, void *value,
}
memcpy(value, buffer, len);
out:
- security_release_secctx(buffer, len);
+ kfree(buffer);
out_noalloc:
return len;
}
diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h
index 8397dc235e84..ad98acfbcba8 100644
--- a/include/linux/cpuset.h
+++ b/include/linux/cpuset.h
@@ -43,7 +43,9 @@ static inline void cpuset_dec(void)

extern int cpuset_init(void);
extern void cpuset_init_smp(void);
+extern void cpuset_force_rebuild(void);
extern void cpuset_update_active_cpus(bool cpu_online);
+extern void cpuset_wait_for_hotplug(void);
extern void cpuset_cpus_allowed(struct task_struct *p, struct cpumask *mask);
extern void cpuset_cpus_allowed_fallback(struct task_struct *p);
extern nodemask_t cpuset_mems_allowed(struct task_struct *p);
@@ -147,11 +149,15 @@ static inline bool cpusets_enabled(void) { return false; }
static inline int cpuset_init(void) { return 0; }
static inline void cpuset_init_smp(void) {}

+static inline void cpuset_force_rebuild(void) { }
+
static inline void cpuset_update_active_cpus(bool cpu_online)
{
partition_sched_domains(1, NULL, NULL);
}

+static inline void cpuset_wait_for_hotplug(void) { }
+
static inline void cpuset_cpus_allowed(struct task_struct *p,
struct cpumask *mask)
{
diff --git a/include/linux/iio/adc/ad_sigma_delta.h b/include/linux/iio/adc/ad_sigma_delta.h
index e7fdec4db9da..6cc48ac55fd2 100644
--- a/include/linux/iio/adc/ad_sigma_delta.h
+++ b/include/linux/iio/adc/ad_sigma_delta.h
@@ -111,6 +111,9 @@ int ad_sd_write_reg(struct ad_sigma_delta *sigma_delta, unsigned int reg,
int ad_sd_read_reg(struct ad_sigma_delta *sigma_delta, unsigned int reg,
unsigned int size, unsigned int *val);

+int ad_sd_reset(struct ad_sigma_delta *sigma_delta,
+ unsigned int reset_length);
+
int ad_sigma_delta_single_conversion(struct iio_dev *indio_dev,
const struct iio_chan_spec *chan, int *val);
int ad_sd_calibrate_all(struct ad_sigma_delta *sigma_delta,
diff --git a/include/uapi/linux/usb/ch9.h b/include/uapi/linux/usb/ch9.h
index 779a62aafafe..91ab75c1013c 100644
--- a/include/uapi/linux/usb/ch9.h
+++ b/include/uapi/linux/usb/ch9.h
@@ -717,6 +717,7 @@ struct usb_interface_assoc_descriptor {
__u8 iFunction;
} __attribute__ ((packed));

+#define USB_DT_INTERFACE_ASSOCIATION_SIZE 8

/*-------------------------------------------------------------------------*/

diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 2924b6faa469..dd3ae6ee064d 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -2281,6 +2281,13 @@ retry:
mutex_unlock(&cpuset_mutex);
}

+static bool force_rebuild;
+
+void cpuset_force_rebuild(void)
+{
+ force_rebuild = true;
+}
+
/**
* cpuset_hotplug_workfn - handle CPU/memory hotunplug for a cpuset
*
@@ -2355,8 +2362,10 @@ static void cpuset_hotplug_workfn(struct work_struct *work)
}

/* rebuild sched domains if cpus_allowed has changed */
- if (cpus_updated)
+ if (cpus_updated || force_rebuild) {
+ force_rebuild = false;
rebuild_sched_domains();
+ }
}

void cpuset_update_active_cpus(bool cpu_online)
@@ -2375,6 +2384,11 @@ void cpuset_update_active_cpus(bool cpu_online)
schedule_work(&cpuset_hotplug_work);
}

+void cpuset_wait_for_hotplug(void)
+{
+ flush_work(&cpuset_hotplug_work);
+}
+
/*
* Keep top_cpuset.mems_allowed tracking node_states[N_MEMORY].
* Call this routine anytime after node_states[N_MEMORY] changes.
diff --git a/kernel/power/process.c b/kernel/power/process.c
index 564f786df470..ba2029a02259 100644
--- a/kernel/power/process.c
+++ b/kernel/power/process.c
@@ -18,8 +18,9 @@
#include <linux/workqueue.h>
#include <linux/kmod.h>
#include <trace/events/power.h>
+#include <linux/cpuset.h>

-/*
+/*
* Timeout for stopping processes
*/
unsigned int __read_mostly freeze_timeout_msecs = 20 * MSEC_PER_SEC;
@@ -198,6 +199,8 @@ void thaw_processes(void)
__usermodehelper_set_disable_depth(UMH_FREEZING);
thaw_workqueues();

+ cpuset_wait_for_hotplug();
+
read_lock(&tasklist_lock);
for_each_process_thread(g, p) {
/* No other threads should have PF_SUSPEND_TASK set */
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index dece705b7f8c..b5d372083624 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -7286,17 +7286,16 @@ static int cpuset_cpu_active(struct notifier_block *nfb, unsigned long action,
* operation in the resume sequence, just build a single sched
* domain, ignoring cpusets.
*/
- num_cpus_frozen--;
- if (likely(num_cpus_frozen)) {
- partition_sched_domains(1, NULL, NULL);
+ partition_sched_domains(1, NULL, NULL);
+ if (--num_cpus_frozen)
break;
- }

/*
* This is the last CPU online operation. So fall through and
* restore the original sched domains by considering the
* cpuset configurations.
*/
+ cpuset_force_rebuild();

case CPU_ONLINE:
cpuset_update_active_cpus(true);
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 38d73a6e2857..fc0051fd672d 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -4315,9 +4315,6 @@ static char ftrace_graph_buf[FTRACE_FILTER_SIZE] __initdata;
static char ftrace_graph_notrace_buf[FTRACE_FILTER_SIZE] __initdata;
static int ftrace_set_func(unsigned long *array, int *idx, int size, char *buffer);

-static unsigned long save_global_trampoline;
-static unsigned long save_global_flags;
-
static int __init set_graph_function(char *str)
{
strlcpy(ftrace_graph_buf, str, FTRACE_FILTER_SIZE);
@@ -5907,17 +5904,6 @@ void unregister_ftrace_graph(void)
unregister_pm_notifier(&ftrace_suspend_notifier);
unregister_trace_sched_switch(ftrace_graph_probe_sched_switch, NULL);

-#ifdef CONFIG_DYNAMIC_FTRACE
- /*
- * Function graph does not allocate the trampoline, but
- * other global_ops do. We need to reset the ALLOC_TRAMP flag
- * if one was used.
- */
- global_ops.trampoline = save_global_trampoline;
- if (save_global_flags & FTRACE_OPS_FL_ALLOC_TRAMP)
- global_ops.flags |= FTRACE_OPS_FL_ALLOC_TRAMP;
-#endif
-
out:
mutex_unlock(&ftrace_lock);
}
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 7c57c7fcf5a2..735a1a9386d6 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -1459,7 +1459,7 @@ static int smack_inode_removexattr(struct dentry *dentry, const char *name)
* @inode: the object
* @name: attribute name
* @buffer: where to put the result
- * @alloc: unused
+ * @alloc: duplicate memory
*
* Returns the size of the attribute or an error code
*/
@@ -1472,43 +1472,38 @@ static int smack_inode_getsecurity(const struct inode *inode,
struct super_block *sbp;
struct inode *ip = (struct inode *)inode;
struct smack_known *isp;
- int ilen;
- int rc = 0;

- if (strcmp(name, XATTR_SMACK_SUFFIX) == 0) {
+ if (strcmp(name, XATTR_SMACK_SUFFIX) == 0)
isp = smk_of_inode(inode);
- ilen = strlen(isp->smk_known);
- *buffer = isp->smk_known;
- return ilen;
- }
+ else {
+ /*
+ * The rest of the Smack xattrs are only on sockets.
+ */
+ sbp = ip->i_sb;
+ if (sbp->s_magic != SOCKFS_MAGIC)
+ return -EOPNOTSUPP;

- /*
- * The rest of the Smack xattrs are only on sockets.
- */
- sbp = ip->i_sb;
- if (sbp->s_magic != SOCKFS_MAGIC)
- return -EOPNOTSUPP;
+ sock = SOCKET_I(ip);
+ if (sock == NULL || sock->sk == NULL)
+ return -EOPNOTSUPP;

- sock = SOCKET_I(ip);
- if (sock == NULL || sock->sk == NULL)
- return -EOPNOTSUPP;
-
- ssp = sock->sk->sk_security;
+ ssp = sock->sk->sk_security;

- if (strcmp(name, XATTR_SMACK_IPIN) == 0)
- isp = ssp->smk_in;
- else if (strcmp(name, XATTR_SMACK_IPOUT) == 0)
- isp = ssp->smk_out;
- else
- return -EOPNOTSUPP;
+ if (strcmp(name, XATTR_SMACK_IPIN) == 0)
+ isp = ssp->smk_in;
+ else if (strcmp(name, XATTR_SMACK_IPOUT) == 0)
+ isp = ssp->smk_out;
+ else
+ return -EOPNOTSUPP;
+ }

- ilen = strlen(isp->smk_known);
- if (rc == 0) {
- *buffer = isp->smk_known;
- rc = ilen;
+ if (alloc) {
+ *buffer = kstrdup(isp->smk_known, GFP_KERNEL);
+ if (*buffer == NULL)
+ return -ENOMEM;
}

- return rc;
+ return strlen(isp->smk_known);
}


diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c
index b554d7f9e3be..6163bf3e8177 100644
--- a/sound/core/compress_offload.c
+++ b/sound/core/compress_offload.c
@@ -872,14 +872,13 @@ static const struct file_operations snd_compr_file_ops = {
static int snd_compress_dev_register(struct snd_device *device)
{
int ret = -EINVAL;
- char str[16];
struct snd_compr *compr;

if (snd_BUG_ON(!device || !device->device_data))
return -EBADFD;
compr = device->device_data;

- pr_debug("reg %s for device %s, direction %d\n", str, compr->name,
+ pr_debug("reg device %s, direction %d\n", compr->name,
compr->direction);
/* register compressed device */
ret = snd_register_device(SNDRV_DEVICE_TYPE_COMPRESS,
diff --git a/sound/usb/card.c b/sound/usb/card.c
index a1cbaa5f7fc9..83336bb6333e 100644
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -217,6 +217,7 @@ static int snd_usb_create_streams(struct snd_usb_audio *chip, int ctrlif)
struct usb_interface_descriptor *altsd;
void *control_header;
int i, protocol;
+ int rest_bytes;

/* find audiocontrol interface */
host_iface = &usb_ifnum_to_if(dev, ctrlif)->altsetting[0];
@@ -231,6 +232,15 @@ static int snd_usb_create_streams(struct snd_usb_audio *chip, int ctrlif)
return -EINVAL;
}

+ rest_bytes = (void *)(host_iface->extra + host_iface->extralen) -
+ control_header;
+
+ /* just to be sure -- this shouldn't hit at all */
+ if (rest_bytes <= 0) {
+ dev_err(&dev->dev, "invalid control header\n");
+ return -EINVAL;
+ }
+
switch (protocol) {
default:
dev_warn(&dev->dev,
@@ -241,11 +251,21 @@ static int snd_usb_create_streams(struct snd_usb_audio *chip, int ctrlif)
case UAC_VERSION_1: {
struct uac1_ac_header_descriptor *h1 = control_header;

+ if (rest_bytes < sizeof(*h1)) {
+ dev_err(&dev->dev, "too short v1 buffer descriptor\n");
+ return -EINVAL;
+ }
+
if (!h1->bInCollection) {
dev_info(&dev->dev, "skipping empty audio interface (v1)\n");
return -EINVAL;
}

+ if (rest_bytes < h1->bLength) {
+ dev_err(&dev->dev, "invalid buffer length (v1)\n");
+ return -EINVAL;
+ }
+
if (h1->bLength < sizeof(*h1) + h1->bInCollection) {
dev_err(&dev->dev, "invalid UAC_HEADER (v1)\n");
return -EINVAL;
diff --git a/sound/usb/usx2y/usb_stream.c b/sound/usb/usx2y/usb_stream.c
index bf618e1500ac..e7b934f4d837 100644
--- a/sound/usb/usx2y/usb_stream.c
+++ b/sound/usb/usx2y/usb_stream.c
@@ -191,7 +191,8 @@ struct usb_stream *usb_stream_new(struct usb_stream_kernel *sk,
}

pg = get_order(read_size);
- sk->s = (void *) __get_free_pages(GFP_KERNEL|__GFP_COMP|__GFP_ZERO, pg);
+ sk->s = (void *) __get_free_pages(GFP_KERNEL|__GFP_COMP|__GFP_ZERO|
+ __GFP_NOWARN, pg);
if (!sk->s) {
snd_printk(KERN_WARNING "couldn't __get_free_pages()\n");
goto out;
@@ -211,7 +212,8 @@ struct usb_stream *usb_stream_new(struct usb_stream_kernel *sk,
pg = get_order(write_size);

sk->write_page =
- (void *)__get_free_pages(GFP_KERNEL|__GFP_COMP|__GFP_ZERO, pg);
+ (void *)__get_free_pages(GFP_KERNEL|__GFP_COMP|__GFP_ZERO|
+ __GFP_NOWARN, pg);
if (!sk->write_page) {
snd_printk(KERN_WARNING "couldn't __get_free_pages()\n");
usb_stream_free(sk);
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