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SubjectRe: Linux 4.9.160
diff --git a/Makefile b/Makefile
index a452ead13b1e..af70503df3f4 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
VERSION = 4
PATCHLEVEL = 9
-SUBLEVEL = 159
+SUBLEVEL = 160
EXTRAVERSION =
NAME = Roaring Lionus

diff --git a/drivers/hwmon/lm80.c b/drivers/hwmon/lm80.c
index cb6606a0470d..be60bd5bab78 100644
--- a/drivers/hwmon/lm80.c
+++ b/drivers/hwmon/lm80.c
@@ -393,8 +393,10 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
}

rv = lm80_read_value(client, LM80_REG_FANDIV);
- if (rv < 0)
+ if (rv < 0) {
+ mutex_unlock(&data->update_lock);
return rv;
+ }
reg = (rv & ~(3 << (2 * (nr + 1))))
| (data->fan_div[nr] << (2 * (nr + 1)));
lm80_write_value(client, LM80_REG_FANDIV, reg);
diff --git a/drivers/isdn/mISDN/timerdev.c b/drivers/isdn/mISDN/timerdev.c
index 9438d7ec3308..8b29e97cf668 100644
--- a/drivers/isdn/mISDN/timerdev.c
+++ b/drivers/isdn/mISDN/timerdev.c
@@ -168,8 +168,8 @@ dev_expire_timer(unsigned long data)
spin_lock_irqsave(&timer->dev->lock, flags);
if (timer->id >= 0)
list_move_tail(&timer->list, &timer->dev->expired);
- spin_unlock_irqrestore(&timer->dev->lock, flags);
wake_up_interruptible(&timer->dev->wait);
+ spin_unlock_irqrestore(&timer->dev->lock, flags);
}

static int
diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c
index 93ab0b3ad393..af11781fe5f9 100644
--- a/drivers/net/ethernet/marvell/sky2.c
+++ b/drivers/net/ethernet/marvell/sky2.c
@@ -5079,7 +5079,7 @@ static int sky2_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
INIT_WORK(&hw->restart_work, sky2_restart);

pci_set_drvdata(pdev, hw);
- pdev->d3_delay = 200;
+ pdev->d3_delay = 300;

return 0;

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c
index a601f8d43b75..f988c7573ba5 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c
@@ -237,15 +237,18 @@ static inline u64 dwmac4_get_timestamp(void *desc, u32 ats)
static int dwmac4_rx_check_timestamp(void *desc)
{
struct dma_desc *p = (struct dma_desc *)desc;
+ unsigned int rdes0 = le32_to_cpu(p->des0);
+ unsigned int rdes1 = le32_to_cpu(p->des1);
+ unsigned int rdes3 = le32_to_cpu(p->des3);
u32 own, ctxt;
int ret = 1;

- own = p->des3 & RDES3_OWN;
- ctxt = ((p->des3 & RDES3_CONTEXT_DESCRIPTOR)
+ own = rdes3 & RDES3_OWN;
+ ctxt = ((rdes3 & RDES3_CONTEXT_DESCRIPTOR)
>> RDES3_CONTEXT_DESCRIPTOR_SHIFT);

if (likely(!own && ctxt)) {
- if ((p->des0 == 0xffffffff) && (p->des1 == 0xffffffff))
+ if ((rdes0 == 0xffffffff) && (rdes1 == 0xffffffff))
/* Corrupted value */
ret = -EINVAL;
else
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
index c5d0142adda2..3519a8a589dd 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
@@ -676,25 +676,27 @@ static int stmmac_ethtool_op_set_eee(struct net_device *dev,
struct ethtool_eee *edata)
{
struct stmmac_priv *priv = netdev_priv(dev);
+ int ret;

- priv->eee_enabled = edata->eee_enabled;
-
- if (!priv->eee_enabled)
+ if (!edata->eee_enabled) {
stmmac_disable_eee_mode(priv);
- else {
+ } else {
/* We are asking for enabling the EEE but it is safe
* to verify all by invoking the eee_init function.
* In case of failure it will return an error.
*/
- priv->eee_enabled = stmmac_eee_init(priv);
- if (!priv->eee_enabled)
+ edata->eee_enabled = stmmac_eee_init(priv);
+ if (!edata->eee_enabled)
return -EOPNOTSUPP;
-
- /* Do not change tx_lpi_timer in case of failure */
- priv->tx_lpi_timer = edata->tx_lpi_timer;
}

- return phy_ethtool_set_eee(priv->phydev, edata);
+ ret = phy_ethtool_set_eee(dev->phydev, edata);
+ if (ret)
+ return ret;
+
+ priv->eee_enabled = edata->eee_enabled;
+ priv->tx_lpi_timer = edata->tx_lpi_timer;
+ return 0;
}

static u32 stmmac_usec2riwt(u32 usec, struct stmmac_priv *priv)
diff --git a/drivers/net/phy/xilinx_gmii2rgmii.c b/drivers/net/phy/xilinx_gmii2rgmii.c
index 7a14e8170e82..aef525467af0 100644
--- a/drivers/net/phy/xilinx_gmii2rgmii.c
+++ b/drivers/net/phy/xilinx_gmii2rgmii.c
@@ -42,7 +42,10 @@ static int xgmiitorgmii_read_status(struct phy_device *phydev)
u16 val = 0;
int err;

- err = priv->phy_drv->read_status(phydev);
+ if (priv->phy_drv->read_status)
+ err = priv->phy_drv->read_status(phydev);
+ else
+ err = genphy_read_status(phydev);
if (err < 0)
return err;

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 28afdf22b88f..373713faa1f5 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -1911,7 +1911,7 @@ static void vxlan_encap_bypass(struct sk_buff *skb, struct vxlan_dev *src_vxlan,
struct pcpu_sw_netstats *tx_stats, *rx_stats;
union vxlan_addr loopback;
union vxlan_addr *remote_ip = &dst_vxlan->default_dst.remote_ip;
- struct net_device *dev = skb->dev;
+ struct net_device *dev;
int len = skb->len;

tx_stats = this_cpu_ptr(src_vxlan->dev->tstats);
@@ -1931,8 +1931,15 @@ static void vxlan_encap_bypass(struct sk_buff *skb, struct vxlan_dev *src_vxlan,
#endif
}

+ rcu_read_lock();
+ dev = skb->dev;
+ if (unlikely(!(dev->flags & IFF_UP))) {
+ kfree_skb(skb);
+ goto drop;
+ }
+
if (dst_vxlan->flags & VXLAN_F_LEARN)
- vxlan_snoop(skb->dev, &loopback, eth_hdr(skb)->h_source);
+ vxlan_snoop(dev, &loopback, eth_hdr(skb)->h_source);

u64_stats_update_begin(&tx_stats->syncp);
tx_stats->tx_packets++;
@@ -1945,8 +1952,10 @@ static void vxlan_encap_bypass(struct sk_buff *skb, struct vxlan_dev *src_vxlan,
rx_stats->rx_bytes += len;
u64_stats_update_end(&rx_stats->syncp);
} else {
+drop:
dev->stats.rx_dropped++;
}
+ rcu_read_unlock();
}

static void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index dc387a974325..2383caf88b67 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -1696,7 +1696,7 @@ static int log_used(struct vhost_virtqueue *vq, u64 used_offset, u64 len)

ret = translate_desc(vq, (uintptr_t)vq->used + used_offset,
len, iov, 64, VHOST_ACCESS_WO);
- if (ret)
+ if (ret < 0)
return ret;

for (i = 0; i < ret; i++) {
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 793d4d571d8d..5c5c389d8fed 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -4463,29 +4463,25 @@ static int emit_fiemap_extent(struct fiemap_extent_info *fieinfo,
}

/*
- * Sanity check for fiemap cache
+ * Emit last fiemap cache
*
- * All fiemap cache should be submitted by emit_fiemap_extent()
- * Iteration should be terminated either by last fiemap extent or
- * fieinfo->fi_extents_max.
- * So no cached fiemap should exist.
+ * The last fiemap cache may still be cached in the following case:
+ * 0 4k 8k
+ * |<- Fiemap range ->|
+ * |<------------ First extent ----------->|
+ *
+ * In this case, the first extent range will be cached but not emitted.
+ * So we must emit it before ending extent_fiemap().
*/
-static int check_fiemap_cache(struct btrfs_fs_info *fs_info,
- struct fiemap_extent_info *fieinfo,
- struct fiemap_cache *cache)
+static int emit_last_fiemap_cache(struct btrfs_fs_info *fs_info,
+ struct fiemap_extent_info *fieinfo,
+ struct fiemap_cache *cache)
{
int ret;

if (!cache->cached)
return 0;

- /* Small and recoverbale problem, only to info developer */
-#ifdef CONFIG_BTRFS_DEBUG
- WARN_ON(1);
-#endif
- btrfs_warn(fs_info,
- "unhandled fiemap cache detected: offset=%llu phys=%llu len=%llu flags=0x%x",
- cache->offset, cache->phys, cache->len, cache->flags);
ret = fiemap_fill_next_extent(fieinfo, cache->offset, cache->phys,
cache->len, cache->flags);
cache->cached = false;
@@ -4701,7 +4697,7 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
}
out_free:
if (!ret)
- ret = check_fiemap_cache(root->fs_info, fieinfo, &cache);
+ ret = emit_last_fiemap_cache(root->fs_info, fieinfo, &cache);
free_extent_map(em);
out:
btrfs_free_path(path);
diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h
index 9c6c8ef2e9e7..b692edeb0b90 100644
--- a/include/linux/netdev_features.h
+++ b/include/linux/netdev_features.h
@@ -11,6 +11,8 @@
#define _LINUX_NETDEV_FEATURES_H

#include <linux/types.h>
+#include <linux/bitops.h>
+#include <asm/byteorder.h>

typedef u64 netdev_features_t;

@@ -137,8 +139,26 @@ enum {
#define NETIF_F_BUSY_POLL __NETIF_F(BUSY_POLL)
#define NETIF_F_HW_TC __NETIF_F(HW_TC)

-#define for_each_netdev_feature(mask_addr, bit) \
- for_each_set_bit(bit, (unsigned long *)mask_addr, NETDEV_FEATURE_COUNT)
+/* Finds the next feature with the highest number of the range of start till 0.
+ */
+static inline int find_next_netdev_feature(u64 feature, unsigned long start)
+{
+ /* like BITMAP_LAST_WORD_MASK() for u64
+ * this sets the most significant 64 - start to 0.
+ */
+ feature &= ~0ULL >> (-start & ((sizeof(feature) * 8) - 1));
+
+ return fls64(feature) - 1;
+}
+
+/* This goes for the MSB to the LSB through the set feature bits,
+ * mask_addr should be a u64 and bit an int
+ */
+#define for_each_netdev_feature(mask_addr, bit) \
+ for ((bit) = find_next_netdev_feature((mask_addr), \
+ NETDEV_FEATURE_COUNT); \
+ (bit) >= 0; \
+ (bit) = find_next_netdev_feature((mask_addr), (bit) - 1))

/* Features valid for ethtool to change */
/* = all defined minus driver/device-class-related */
diff --git a/include/net/ax25.h b/include/net/ax25.h
index e602f8177ebf..b507ce2b1952 100644
--- a/include/net/ax25.h
+++ b/include/net/ax25.h
@@ -199,6 +199,18 @@ static inline void ax25_hold_route(ax25_route *ax25_rt)

void __ax25_put_route(ax25_route *ax25_rt);

+extern rwlock_t ax25_route_lock;
+
+static inline void ax25_route_lock_use(void)
+{
+ read_lock(&ax25_route_lock);
+}
+
+static inline void ax25_route_lock_unuse(void)
+{
+ read_unlock(&ax25_route_lock);
+}
+
static inline void ax25_put_route(ax25_route *ax25_rt)
{
if (atomic_dec_and_test(&ax25_rt->refcount))
diff --git a/include/net/inetpeer.h b/include/net/inetpeer.h
index 235c7811a86a..408d76f47bd2 100644
--- a/include/net/inetpeer.h
+++ b/include/net/inetpeer.h
@@ -40,6 +40,7 @@ struct inet_peer {

u32 metrics[RTAX_MAX];
u32 rate_tokens; /* rate limiting for ICMP */
+ u32 n_redirects;
unsigned long rate_last;
union {
struct list_head gc_list;
diff --git a/include/net/tcp.h b/include/net/tcp.h
index c3f4f6a9e6c3..fed2a78fb8cb 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1526,6 +1526,7 @@ static inline void tcp_write_queue_purge(struct sock *sk)
sk_wmem_free_skb(sk, skb);
sk_mem_reclaim(sk);
tcp_clear_all_retrans_hints(tcp_sk(sk));
+ inet_csk(sk)->icsk_backoff = 0;
}

static inline struct sk_buff *tcp_write_queue_head(const struct sock *sk)
diff --git a/net/ax25/ax25_ip.c b/net/ax25/ax25_ip.c
index 2fa3be965101..cd9a24e5b97a 100644
--- a/net/ax25/ax25_ip.c
+++ b/net/ax25/ax25_ip.c
@@ -114,6 +114,7 @@ netdev_tx_t ax25_ip_xmit(struct sk_buff *skb)
dst = (ax25_address *)(bp + 1);
src = (ax25_address *)(bp + 8);

+ ax25_route_lock_use();
route = ax25_get_route(dst, NULL);
if (route) {
digipeat = route->digipeat;
@@ -206,9 +207,8 @@ netdev_tx_t ax25_ip_xmit(struct sk_buff *skb)
ax25_queue_xmit(skb, dev);

put:
- if (route)
- ax25_put_route(route);

+ ax25_route_lock_unuse();
return NETDEV_TX_OK;
}

diff --git a/net/ax25/ax25_route.c b/net/ax25/ax25_route.c
index d39097737e38..149f82bd83fd 100644
--- a/net/ax25/ax25_route.c
+++ b/net/ax25/ax25_route.c
@@ -40,7 +40,7 @@
#include <linux/export.h>

static ax25_route *ax25_route_list;
-static DEFINE_RWLOCK(ax25_route_lock);
+DEFINE_RWLOCK(ax25_route_lock);

void ax25_rt_device_down(struct net_device *dev)
{
@@ -349,6 +349,7 @@ const struct file_operations ax25_route_fops = {
* Find AX.25 route
*
* Only routes with a reference count of zero can be destroyed.
+ * Must be called with ax25_route_lock read locked.
*/
ax25_route *ax25_get_route(ax25_address *addr, struct net_device *dev)
{
@@ -356,7 +357,6 @@ ax25_route *ax25_get_route(ax25_address *addr, struct net_device *dev)
ax25_route *ax25_def_rt = NULL;
ax25_route *ax25_rt;

- read_lock(&ax25_route_lock);
/*
* Bind to the physical interface we heard them on, or the default
* route if none is found;
@@ -379,11 +379,6 @@ ax25_route *ax25_get_route(ax25_address *addr, struct net_device *dev)
if (ax25_spe_rt != NULL)
ax25_rt = ax25_spe_rt;

- if (ax25_rt != NULL)
- ax25_hold_route(ax25_rt);
-
- read_unlock(&ax25_route_lock);
-
return ax25_rt;
}

@@ -414,9 +409,12 @@ int ax25_rt_autobind(ax25_cb *ax25, ax25_address *addr)
ax25_route *ax25_rt;
int err = 0;

- if ((ax25_rt = ax25_get_route(addr, NULL)) == NULL)
+ ax25_route_lock_use();
+ ax25_rt = ax25_get_route(addr, NULL);
+ if (!ax25_rt) {
+ ax25_route_lock_unuse();
return -EHOSTUNREACH;
-
+ }
if ((ax25->ax25_dev = ax25_dev_ax25dev(ax25_rt->dev)) == NULL) {
err = -EHOSTUNREACH;
goto put;
@@ -451,8 +449,7 @@ int ax25_rt_autobind(ax25_cb *ax25, ax25_address *addr)
}

put:
- ax25_put_route(ax25_rt);
-
+ ax25_route_lock_unuse();
return err;
}

diff --git a/net/core/dev.c b/net/core/dev.c
index 071c589f7994..8e187f90c85d 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -6909,7 +6909,7 @@ static netdev_features_t netdev_sync_upper_features(struct net_device *lower,
netdev_features_t feature;
int feature_bit;

- for_each_netdev_feature(&upper_disables, feature_bit) {
+ for_each_netdev_feature(upper_disables, feature_bit) {
feature = __NETIF_F_BIT(feature_bit);
if (!(upper->wanted_features & feature)
&& (features & feature)) {
@@ -6929,7 +6929,7 @@ static void netdev_sync_lower_features(struct net_device *upper,
netdev_features_t feature;
int feature_bit;

- for_each_netdev_feature(&upper_disables, feature_bit) {
+ for_each_netdev_feature(upper_disables, feature_bit) {
feature = __NETIF_F_BIT(feature_bit);
if (!(features & feature) && (lower->features & feature)) {
netdev_dbg(upper, "Disabling feature %pNF on lower dev %s.\n",
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 11501165f0df..4a71d78d0c6a 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -383,6 +383,8 @@ static void *__netdev_alloc_frag(unsigned int fragsz, gfp_t gfp_mask)
*/
void *netdev_alloc_frag(unsigned int fragsz)
{
+ fragsz = SKB_DATA_ALIGN(fragsz);
+
return __netdev_alloc_frag(fragsz, GFP_ATOMIC | __GFP_COLD);
}
EXPORT_SYMBOL(netdev_alloc_frag);
@@ -396,6 +398,8 @@ static void *__napi_alloc_frag(unsigned int fragsz, gfp_t gfp_mask)

void *napi_alloc_frag(unsigned int fragsz)
{
+ fragsz = SKB_DATA_ALIGN(fragsz);
+
return __napi_alloc_frag(fragsz, GFP_ATOMIC | __GFP_COLD);
}
EXPORT_SYMBOL(napi_alloc_frag);
diff --git a/net/ipv4/inetpeer.c b/net/ipv4/inetpeer.c
index 86fa45809540..0c5862914f05 100644
--- a/net/ipv4/inetpeer.c
+++ b/net/ipv4/inetpeer.c
@@ -448,6 +448,7 @@ struct inet_peer *inet_getpeer(struct inet_peer_base *base,
atomic_set(&p->rid, 0);
p->metrics[RTAX_LOCK-1] = INETPEER_METRICS_NEW;
p->rate_tokens = 0;
+ p->n_redirects = 0;
/* 60*HZ is arbitrary, but chosen enough high so that the first
* calculation of tokens is at its maximum.
*/
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 890141d32ab9..d606de65e2d0 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -882,13 +882,15 @@ void ip_rt_send_redirect(struct sk_buff *skb)
/* No redirected packets during ip_rt_redirect_silence;
* reset the algorithm.
*/
- if (time_after(jiffies, peer->rate_last + ip_rt_redirect_silence))
+ if (time_after(jiffies, peer->rate_last + ip_rt_redirect_silence)) {
peer->rate_tokens = 0;
+ peer->n_redirects = 0;
+ }

/* Too many ignored redirects; do not send anything
* set dst.rate_last to the last seen redirected packet.
*/
- if (peer->rate_tokens >= ip_rt_redirect_number) {
+ if (peer->n_redirects >= ip_rt_redirect_number) {
peer->rate_last = jiffies;
goto out_put_peer;
}
@@ -905,6 +907,7 @@ void ip_rt_send_redirect(struct sk_buff *skb)
icmp_send(skb, ICMP_REDIRECT, ICMP_REDIR_HOST, gw);
peer->rate_last = jiffies;
++peer->rate_tokens;
+ ++peer->n_redirects;
#ifdef CONFIG_IP_ROUTE_VERBOSE
if (log_martians &&
peer->rate_tokens == ip_rt_redirect_number)
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 9de77d946f5a..2ededb32b754 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2292,7 +2292,6 @@ int tcp_disconnect(struct sock *sk, int flags)
tp->write_seq += tp->max_window + 2;
if (tp->write_seq == 0)
tp->write_seq = 1;
- icsk->icsk_backoff = 0;
tp->snd_cwnd = 2;
icsk->icsk_probes_out = 0;
tp->packets_out = 0;
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 1ea0c91ba994..82c1064ff4aa 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -464,14 +464,15 @@ void tcp_v4_err(struct sk_buff *icmp_skb, u32 info)
if (sock_owned_by_user(sk))
break;

+ skb = tcp_write_queue_head(sk);
+ if (WARN_ON_ONCE(!skb))
+ break;
+
icsk->icsk_backoff--;
icsk->icsk_rto = tp->srtt_us ? __tcp_set_rto(tp) :
TCP_TIMEOUT_INIT;
icsk->icsk_rto = inet_csk_rto_backoff(icsk, TCP_RTO_MAX);

- skb = tcp_write_queue_head(sk);
- BUG_ON(!skb);
-
remaining = icsk->icsk_rto -
min(icsk->icsk_rto,
tcp_time_stamp - tcp_skb_timestamp(skb));
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 8f79f0414bc3..4ce7f9195151 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1074,7 +1074,8 @@ check_cleanup_prefix_route(struct inet6_ifaddr *ifp, unsigned long *expires)
list_for_each_entry(ifa, &idev->addr_list, if_list) {
if (ifa == ifp)
continue;
- if (!ipv6_prefix_equal(&ifa->addr, &ifp->addr,
+ if (ifa->prefix_len != ifp->prefix_len ||
+ !ipv6_prefix_equal(&ifa->addr, &ifp->addr,
ifp->prefix_len))
continue;
if (ifa->flags & (IFA_F_PERMANENT | IFA_F_NOPREFIXROUTE))
diff --git a/net/vmw_vsock/vmci_transport.c b/net/vmw_vsock/vmci_transport.c
index 008f3424dcbc..102bf9194662 100644
--- a/net/vmw_vsock/vmci_transport.c
+++ b/net/vmw_vsock/vmci_transport.c
@@ -1656,6 +1656,10 @@ static void vmci_transport_cleanup(struct work_struct *work)

static void vmci_transport_destruct(struct vsock_sock *vsk)
{
+ /* transport can be NULL if we hit a failure at init() time */
+ if (!vmci_trans(vsk))
+ return;
+
/* Ensure that the detach callback doesn't use the sk/vsk
* we are about to destruct.
*/
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index 007721632b07..0a7e5d992bba 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -352,17 +352,15 @@ static unsigned int x25_new_lci(struct x25_neigh *nb)
unsigned int lci = 1;
struct sock *sk;

- read_lock_bh(&x25_list_lock);
-
- while ((sk = __x25_find_socket(lci, nb)) != NULL) {
+ while ((sk = x25_find_socket(lci, nb)) != NULL) {
sock_put(sk);
if (++lci == 4096) {
lci = 0;
break;
}
+ cond_resched();
}

- read_unlock_bh(&x25_list_lock);
return lci;
}

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