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Subject[PATCH 1/2] staging: remove null checks before kfree
Date
This patch was created with the following semantic patch:

// <smpl>
@@
expression E;
@@

- if (E != NULL) kfree(E);
+ kfree(E);
// </smpl>

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
---

Hi Greg,

Please let me know if you would rather I split these up by driver instead.
I didn't because I saw that you took staging-wide cleanups before.

drivers/staging/brcm80211/brcmfmac/dhd_cdc.c | 3 +--
drivers/staging/brcm80211/brcmfmac/dhd_common.c | 9 +++------
drivers/staging/brcm80211/brcmfmac/dhd_linux.c | 3 +--
drivers/staging/brcm80211/brcmfmac/dhd_sdio.c | 18 ++++++------------
.../staging/brcm80211/brcmsmac/phy/wlc_phy_cmn.c | 3 +--
drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_n.c | 6 ++----
drivers/staging/brcm80211/brcmsmac/wl_mac80211.c | 9 +++------
drivers/staging/brcm80211/brcmsmac/wlc_alloc.c | 6 ++----
drivers/staging/brcm80211/brcmsmac/wlc_channel.c | 3 +--
drivers/staging/brcm80211/util/bcmotp.c | 3 +--
drivers/staging/brcm80211/util/bcmsrom.c | 6 ++----
drivers/staging/brcm80211/util/hnddma.c | 6 ++----
drivers/staging/comedi/drivers/das16.c | 6 ++----
drivers/staging/comedi/drivers/ni_at_a2150.c | 3 +--
drivers/staging/comedi/drivers/ni_labpc.c | 3 +--
drivers/staging/cx25821/cx25821-audio-upstream.c | 3 +--
.../staging/cx25821/cx25821-video-upstream-ch2.c | 3 +--
drivers/staging/cx25821/cx25821-video-upstream.c | 3 +--
drivers/staging/go7007/go7007-usb.c | 6 ++----
drivers/staging/hv/channel_mgmt.c | 3 +--
drivers/staging/keucr/ms.c | 8 ++++----
drivers/staging/line6/pcm.c | 3 +--
drivers/staging/pohmelfs/config.c | 6 ++----
drivers/staging/rt2860/common/spectrum.c | 6 ++----
drivers/staging/rt2860/rt_linux.c | 6 ++----
.../rtl8187se/ieee80211/ieee80211_softmac.c | 3 +--
drivers/staging/rtl8187se/ieee80211/ieee80211_wx.c | 1 -
drivers/staging/rtl8192e/ieee80211/ieee80211_wx.c | 1 -
drivers/staging/rtl8192u/ieee80211/cipher.c | 3 +--
drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c | 1 -
drivers/staging/rtl8712/rtl871x_ioctl_linux.c | 3 +--
drivers/staging/serqt_usb2/serqt_usb2.c | 3 +--
drivers/staging/tidspbridge/core/chnl_sm.c | 3 +--
drivers/staging/tidspbridge/pmgr/dbll.c | 3 +--
drivers/staging/usbip/stub_main.c | 6 ++----
drivers/staging/vme/bridges/vme_ca91cx42.c | 3 +--
drivers/staging/vme/bridges/vme_tsi148.c | 3 +--
drivers/staging/vt6655/device_main.c | 3 +--
drivers/staging/vt6655/hostap.c | 3 +--
drivers/staging/vt6655/wpactl.c | 3 +--
drivers/staging/vt6656/firmware.c | 3 +--
drivers/staging/vt6656/hostap.c | 3 +--
drivers/staging/vt6656/main_usb.c | 12 ++++--------
drivers/staging/vt6656/wpactl.c | 3 +--
drivers/staging/winbond/wb35reg.c | 3 +--
drivers/staging/wlan-ng/prism2fw.c | 3 +--
46 files changed, 68 insertions(+), 135 deletions(-)

diff --git a/drivers/staging/brcm80211/brcmfmac/dhd_cdc.c b/drivers/staging/brcm80211/brcmfmac/dhd_cdc.c
index ed204d5..c0a6cfd 100644
--- a/drivers/staging/brcm80211/brcmfmac/dhd_cdc.c
+++ b/drivers/staging/brcm80211/brcmfmac/dhd_cdc.c
@@ -417,8 +417,7 @@ int dhd_prot_attach(dhd_pub_t *dhd)
return 0;

fail:
- if (cdc != NULL)
- kfree(cdc);
+ kfree(cdc);
return BCME_NOMEM;
}

diff --git a/drivers/staging/brcm80211/brcmfmac/dhd_common.c b/drivers/staging/brcm80211/brcmfmac/dhd_common.c
index b2a6fb2..1857576 100644
--- a/drivers/staging/brcm80211/brcmfmac/dhd_common.c
+++ b/drivers/staging/brcm80211/brcmfmac/dhd_common.c
@@ -1003,8 +1003,7 @@ dhd_pktfilter_offload_enable(dhd_pub_t *dhd, char *arg, int enable,
__func__, arg, rc));

fail:
- if (arg_org)
- kfree(arg_org);
+ kfree(arg_org);
}

void dhd_pktfilter_offload_set(dhd_pub_t *dhd, char *arg)
@@ -1139,11 +1138,9 @@ void dhd_pktfilter_offload_set(dhd_pub_t *dhd, char *arg)
__func__, arg));

fail:
- if (arg_org)
- kfree(arg_org);
+ kfree(arg_org);

- if (buf)
- kfree(buf);
+ kfree(buf);
}

void dhd_arp_offload_set(dhd_pub_t *dhd, int arp_mode)
diff --git a/drivers/staging/brcm80211/brcmfmac/dhd_linux.c b/drivers/staging/brcm80211/brcmfmac/dhd_linux.c
index ffba746..48157b0 100644
--- a/drivers/staging/brcm80211/brcmfmac/dhd_linux.c
+++ b/drivers/staging/brcm80211/brcmfmac/dhd_linux.c
@@ -1787,8 +1787,7 @@ done:
bcmerror = -EFAULT;
}

- if (buf)
- kfree(buf);
+ kfree(buf);

if (bcmerror > 0)
bcmerror = 0;
diff --git a/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c b/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c
index 916c555..061cc82 100644
--- a/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c
+++ b/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c
@@ -1931,10 +1931,8 @@ static int dhdsdio_checkdied(dhd_bus_t *bus, u8 *data, uint size)
#endif /* DHD_DEBUG */

done:
- if (mbuffer)
- kfree(mbuffer);
- if (str)
- kfree(str);
+ kfree(mbuffer);
+ kfree(str);

return bcmerror;
}
@@ -1963,8 +1961,7 @@ static int dhdsdio_mem_dump(dhd_bus_t *bus)
ret = dhdsdio_membytes(bus, false, start, databuf, read_size);
if (ret) {
DHD_ERROR(("%s: Error membytes %d\n", __func__, ret));
- if (buf)
- kfree(buf);
+ kfree(buf);
return -1;
}
printk(".");
@@ -2082,8 +2079,7 @@ int dhdsdio_downloadvars(dhd_bus_t *bus, void *arg, int len)
}

/* Free the old ones and replace with passed variables */
- if (bus->vars)
- kfree(bus->vars);
+ kfree(bus->vars);

bus->vars = kmalloc(len, GFP_ATOMIC);
bus->varsz = bus->vars ? len : 0;
@@ -5763,8 +5759,7 @@ static int dhdsdio_download_code_file(struct dhd_bus *bus, char *fw_path)
}

err:
- if (memblock)
- kfree(memblock);
+ kfree(memblock);

if (image)
dhd_os_close_image(image);
@@ -5903,8 +5898,7 @@ static int dhdsdio_download_nvram(struct dhd_bus *bus)
}

err:
- if (memblock)
- kfree(memblock);
+ kfree(memblock);

if (image)
dhd_os_close_image(image);
diff --git a/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_cmn.c b/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_cmn.c
index 0760d97..260d464 100644
--- a/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_cmn.c
+++ b/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_cmn.c
@@ -784,8 +784,7 @@ wlc_phy_t *wlc_phy_attach(shared_phy_t *sh, void *regs, int bandtype, char *vars
return &pi->pubpi_ro;

err:
- if (pi)
- kfree(pi);
+ kfree(pi);
return NULL;
}

diff --git a/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_n.c b/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_n.c
index c6cce8d..49277d8 100644
--- a/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_n.c
+++ b/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_n.c
@@ -22386,8 +22386,7 @@ wlc_phy_gen_load_samples_nphy(phy_info_t *pi, u32 f_kHz, u16 max_val,

wlc_phy_loadsampletable_nphy(pi, tone_buf, num_samps);

- if (tone_buf != NULL)
- kfree(tone_buf);
+ kfree(tone_buf);

return num_samps;
}
@@ -22434,8 +22433,7 @@ wlc_phy_loadsampletable_nphy(phy_info_t *pi, cs32 *tone_buf,
wlc_phy_table_write_nphy(pi, NPHY_TBL_ID_SAMPLEPLAY, num_samps, 0, 32,
data_buf);

- if (data_buf != NULL)
- kfree(data_buf);
+ kfree(data_buf);

if (pi->phyhang_avoid)
wlc_phy_stay_in_carriersearch_nphy(pi, false);
diff --git a/drivers/staging/brcm80211/brcmsmac/wl_mac80211.c b/drivers/staging/brcm80211/brcmsmac/wl_mac80211.c
index 56f5d3a..9b47679 100644
--- a/drivers/staging/brcm80211/brcmsmac/wl_mac80211.c
+++ b/drivers/staging/brcm80211/brcmsmac/wl_mac80211.c
@@ -1336,8 +1336,7 @@ void wl_free(struct wl_info *wl)
for (t = wl->timers; t; t = next) {
next = t->next;
#ifdef BCMDBG
- if (t->name)
- kfree(t->name);
+ kfree(t->name);
#endif
kfree(t);
}
@@ -1664,8 +1663,7 @@ void wl_free_timer(struct wl_info *wl, wl_timer_t *t)
if (wl->timers == t) {
wl->timers = wl->timers->next;
#ifdef BCMDBG
- if (t->name)
- kfree(t->name);
+ kfree(t->name);
#endif
kfree(t);
return;
@@ -1677,8 +1675,7 @@ void wl_free_timer(struct wl_info *wl, wl_timer_t *t)
if (tmp->next == t) {
tmp->next = t->next;
#ifdef BCMDBG
- if (t->name)
- kfree(t->name);
+ kfree(t->name);
#endif
kfree(t);
return;
diff --git a/drivers/staging/brcm80211/brcmsmac/wlc_alloc.c b/drivers/staging/brcm80211/brcmsmac/wlc_alloc.c
index 2db96c1..b7934ed 100644
--- a/drivers/staging/brcm80211/brcmsmac/wlc_alloc.c
+++ b/drivers/staging/brcm80211/brcmsmac/wlc_alloc.c
@@ -325,8 +325,7 @@ void wlc_detach_mfree(struct wlc_info *wlc, struct osl_info *osh)
wlc->pkt_callback = NULL;
}

- if (wlc->wsec_def_keys[0])
- kfree(wlc->wsec_def_keys[0]);
+ kfree(wlc->wsec_def_keys[0]);
if (wlc->protection) {
kfree(wlc->protection);
wlc->protection = NULL;
@@ -337,8 +336,7 @@ void wlc_detach_mfree(struct wlc_info *wlc, struct osl_info *osh)
wlc->stf = NULL;
}

- if (wlc->bandstate[0])
- kfree(wlc->bandstate[0]);
+ kfree(wlc->bandstate[0]);

if (wlc->corestate) {
if (wlc->corestate->macstat_snapshot) {
diff --git a/drivers/staging/brcm80211/brcmsmac/wlc_channel.c b/drivers/staging/brcm80211/brcmsmac/wlc_channel.c
index 06b31a0..b69ae21 100644
--- a/drivers/staging/brcm80211/brcmsmac/wlc_channel.c
+++ b/drivers/staging/brcm80211/brcmsmac/wlc_channel.c
@@ -654,8 +654,7 @@ wlc_cm_info_t *wlc_channel_mgr_attach(struct wlc_info *wlc)

void wlc_channel_mgr_detach(wlc_cm_info_t *wlc_cm)
{
- if (wlc_cm)
- kfree(wlc_cm);
+ kfree(wlc_cm);
}

u8 wlc_channel_locale_flags_in_band(wlc_cm_info_t *wlc_cm, uint bandunit)
diff --git a/drivers/staging/brcm80211/util/bcmotp.c b/drivers/staging/brcm80211/util/bcmotp.c
index 6fa04ed..556b180 100644
--- a/drivers/staging/brcm80211/util/bcmotp.c
+++ b/drivers/staging/brcm80211/util/bcmotp.c
@@ -842,8 +842,7 @@ static int hndotp_nvread(void *oh, char *data, uint *len)
*len = offset;

out:
- if (rawotp)
- kfree(rawotp);
+ kfree(rawotp);
si_setcoreidx(oi->sih, idx);

return rc;
diff --git a/drivers/staging/brcm80211/util/bcmsrom.c b/drivers/staging/brcm80211/util/bcmsrom.c
index b26877c..3c88018 100644
--- a/drivers/staging/brcm80211/util/bcmsrom.c
+++ b/drivers/staging/brcm80211/util/bcmsrom.c
@@ -1520,8 +1520,7 @@ static int otp_read_pci(struct osl_info *osh, si_t *sih, u16 *buf, uint bufsz)

memcpy(buf, otp, bufsz);

- if (otp)
- kfree(otp);
+ kfree(otp);

/* Check CRC */
if (buf[0] == 0xffff) {
@@ -1979,8 +1978,7 @@ static int initvars_srom_pci(si_t *sih, void *curmap, char **vars, uint *count)
err = initvars_table(osh, base, vp, vars, count);

errout:
- if (base)
- kfree(base);
+ kfree(base);

kfree(srom);
return err;
diff --git a/drivers/staging/brcm80211/util/hnddma.c b/drivers/staging/brcm80211/util/hnddma.c
index 3f1d63e..56fed04 100644
--- a/drivers/staging/brcm80211/util/hnddma.c
+++ b/drivers/staging/brcm80211/util/hnddma.c
@@ -557,12 +557,10 @@ static void _dma_detach(dma_info_t *di)
kfree((void *)di->rxp);

/* free tx packet DMA handles */
- if (di->txp_dmah)
- kfree(di->txp_dmah);
+ kfree(di->txp_dmah);

/* free rx packet DMA handles */
- if (di->rxp_dmah)
- kfree(di->rxp_dmah);
+ kfree(di->rxp_dmah);

/* free our private info structure */
kfree((void *)di);
diff --git a/drivers/staging/comedi/drivers/das16.c b/drivers/staging/comedi/drivers/das16.c
index 0af1b46..e7905ba 100644
--- a/drivers/staging/comedi/drivers/das16.c
+++ b/drivers/staging/comedi/drivers/das16.c
@@ -1695,10 +1695,8 @@ static int das16_detach(struct comedi_device *dev)
}
if (devpriv->dma_chan)
free_dma(devpriv->dma_chan);
- if (devpriv->user_ai_range_table)
- kfree(devpriv->user_ai_range_table);
- if (devpriv->user_ao_range_table)
- kfree(devpriv->user_ao_range_table);
+ kfree(devpriv->user_ai_range_table);
+ kfree(devpriv->user_ao_range_table);
}

if (dev->irq)
diff --git a/drivers/staging/comedi/drivers/ni_at_a2150.c b/drivers/staging/comedi/drivers/ni_at_a2150.c
index e46d62b..4d0053e 100644
--- a/drivers/staging/comedi/drivers/ni_at_a2150.c
+++ b/drivers/staging/comedi/drivers/ni_at_a2150.c
@@ -479,8 +479,7 @@ static int a2150_detach(struct comedi_device *dev)
if (devpriv) {
if (devpriv->dma)
free_dma(devpriv->dma);
- if (devpriv->dma_buffer)
- kfree(devpriv->dma_buffer);
+ kfree(devpriv->dma_buffer);
}

return 0;
diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c
index 0728c3c..241fe52 100644
--- a/drivers/staging/comedi/drivers/ni_labpc.c
+++ b/drivers/staging/comedi/drivers/ni_labpc.c
@@ -797,8 +797,7 @@ int labpc_common_detach(struct comedi_device *dev)
subdev_8255_cleanup(dev, dev->subdevices + 2);

/* only free stuff if it has been allocated by _attach */
- if (devpriv->dma_buffer)
- kfree(devpriv->dma_buffer);
+ kfree(devpriv->dma_buffer);
if (devpriv->dma_chan)
free_dma(devpriv->dma_chan);
if (dev->irq)
diff --git a/drivers/staging/cx25821/cx25821-audio-upstream.c b/drivers/staging/cx25821/cx25821-audio-upstream.c
index 7992a3b..be657df 100644
--- a/drivers/staging/cx25821/cx25821-audio-upstream.c
+++ b/drivers/staging/cx25821/cx25821-audio-upstream.c
@@ -249,8 +249,7 @@ void cx25821_stop_upstream_audio(struct cx25821_dev *dev)
dev->_irq_audio_queues = NULL;
}

- if (dev->_audiofilename != NULL)
- kfree(dev->_audiofilename);
+ kfree(dev->_audiofilename);
}

void cx25821_free_mem_upstream_audio(struct cx25821_dev *dev)
diff --git a/drivers/staging/cx25821/cx25821-video-upstream-ch2.c b/drivers/staging/cx25821/cx25821-video-upstream-ch2.c
index e2efacd..586739d 100644
--- a/drivers/staging/cx25821/cx25821-video-upstream-ch2.c
+++ b/drivers/staging/cx25821/cx25821-video-upstream-ch2.c
@@ -239,8 +239,7 @@ void cx25821_stop_upstream_video_ch2(struct cx25821_dev *dev)
dev->_irq_queues_ch2 = NULL;
}

- if (dev->_filename_ch2 != NULL)
- kfree(dev->_filename_ch2);
+ kfree(dev->_filename_ch2);

tmp = cx_read(VID_CH_MODE_SEL);
cx_write(VID_CH_MODE_SEL, tmp & 0xFFFFFE00);
diff --git a/drivers/staging/cx25821/cx25821-video-upstream.c b/drivers/staging/cx25821/cx25821-video-upstream.c
index 31b4e3c..25bfd8a 100644
--- a/drivers/staging/cx25821/cx25821-video-upstream.c
+++ b/drivers/staging/cx25821/cx25821-video-upstream.c
@@ -284,8 +284,7 @@ void cx25821_stop_upstream_video_ch1(struct cx25821_dev *dev)
dev->_irq_queues = NULL;
}

- if (dev->_filename != NULL)
- kfree(dev->_filename);
+ kfree(dev->_filename);

tmp = cx_read(VID_CH_MODE_SEL);
cx_write(VID_CH_MODE_SEL, tmp & 0xFFFFFE00);
diff --git a/drivers/staging/go7007/go7007-usb.c b/drivers/staging/go7007/go7007-usb.c
index bea9f4d..3db3b0a 100644
--- a/drivers/staging/go7007/go7007-usb.c
+++ b/drivers/staging/go7007/go7007-usb.c
@@ -1247,15 +1247,13 @@ static void go7007_usb_disconnect(struct usb_interface *intf)
vurb = usb->video_urbs[i];
if (vurb) {
usb_kill_urb(vurb);
- if (vurb->transfer_buffer)
- kfree(vurb->transfer_buffer);
+ kfree(vurb->transfer_buffer);
usb_free_urb(vurb);
}
aurb = usb->audio_urbs[i];
if (aurb) {
usb_kill_urb(aurb);
- if (aurb->transfer_buffer)
- kfree(aurb->transfer_buffer);
+ kfree(aurb->transfer_buffer);
usb_free_urb(aurb);
}
}
diff --git a/drivers/staging/hv/channel_mgmt.c b/drivers/staging/hv/channel_mgmt.c
index 0781c0e..0fe4e2d 100644
--- a/drivers/staging/hv/channel_mgmt.c
+++ b/drivers/staging/hv/channel_mgmt.c
@@ -829,8 +829,7 @@ int vmbus_request_offers(void)


cleanup:
- if (msginfo)
- kfree(msginfo);
+ kfree(msginfo);

return ret;
}
diff --git a/drivers/staging/keucr/ms.c b/drivers/staging/keucr/ms.c
index 452ea8f..7779d3b 100644
--- a/drivers/staging/keucr/ms.c
+++ b/drivers/staging/keucr/ms.c
@@ -242,8 +242,8 @@ int MS_CardInit(struct us_data *us)
result = MS_STATUS_SUCCESS;

exit:
- if (PageBuffer1) kfree(PageBuffer1);
- if (PageBuffer0) kfree(PageBuffer0);
+ kfree(PageBuffer1);
+ kfree(PageBuffer0);

printk("MS_CardInit end\n");
return result;
@@ -278,7 +278,7 @@ int MS_LibCheckDisableBlock(struct us_data *us, WORD PhyBlock)
} while(1);

exit:
- if (PageBuf) kfree(PageBuf);
+ kfree(PageBuf);
return result;
}

@@ -468,7 +468,7 @@ int MS_LibProcessBootBlock(struct us_data *us, WORD PhyBlock, BYTE *PageData)

exit:
if (result) MS_LibFreeLogicalMap(us);
- if (PageBuffer) kfree(PageBuffer);
+ kfree(PageBuffer);

result = 0;
return result;
diff --git a/drivers/staging/line6/pcm.c b/drivers/staging/line6/pcm.c
index b9c55f9..9d4c8a6 100644
--- a/drivers/staging/line6/pcm.c
+++ b/drivers/staging/line6/pcm.c
@@ -189,8 +189,7 @@ int line6_pcm_stop(struct snd_line6_pcm *line6pcm, int channels)
line6pcm->buffer_out = NULL;
}
#if LINE6_BACKUP_MONITOR_SIGNAL
- if (line6pcm->prev_fbuf != NULL)
- kfree(line6pcm->prev_fbuf);
+ kfree(line6pcm->prev_fbuf);
#endif

return 0;
diff --git a/drivers/staging/pohmelfs/config.c b/drivers/staging/pohmelfs/config.c
index ed91330..a9a3e25 100644
--- a/drivers/staging/pohmelfs/config.c
+++ b/drivers/staging/pohmelfs/config.c
@@ -601,11 +601,9 @@ void pohmelfs_config_exit(void)

list_del(&g->group_entry);

- if (g->hash_string)
- kfree(g->hash_string);
+ kfree(g->hash_string);

- if (g->cipher_string)
- kfree(g->cipher_string);
+ kfree(g->cipher_string);

kfree(g);
}
diff --git a/drivers/staging/rt2860/common/spectrum.c b/drivers/staging/rt2860/common/spectrum.c
index 1dfb802..c0d2f42 100644
--- a/drivers/staging/rt2860/common/spectrum.c
+++ b/drivers/staging/rt2860/common/spectrum.c
@@ -416,8 +416,7 @@ void MeasureReqTabExit(struct rt_rtmp_adapter *pAd)
{
NdisFreeSpinLock(&pAd->CommonCfg.MeasureReqTabLock);

- if (pAd->CommonCfg.pMeasureReqTab)
- kfree(pAd->CommonCfg.pMeasureReqTab);
+ kfree(pAd->CommonCfg.pMeasureReqTab);
pAd->CommonCfg.pMeasureReqTab = NULL;

return;
@@ -614,8 +613,7 @@ void TpcReqTabExit(struct rt_rtmp_adapter *pAd)
{
NdisFreeSpinLock(&pAd->CommonCfg.TpcReqTabLock);

- if (pAd->CommonCfg.pTpcReqTab)
- kfree(pAd->CommonCfg.pTpcReqTab);
+ kfree(pAd->CommonCfg.pTpcReqTab);
pAd->CommonCfg.pTpcReqTab = NULL;

return;
diff --git a/drivers/staging/rt2860/rt_linux.c b/drivers/staging/rt2860/rt_linux.c
index b3f836d..e5b0427 100644
--- a/drivers/staging/rt2860/rt_linux.c
+++ b/drivers/staging/rt2860/rt_linux.c
@@ -241,8 +241,7 @@ void RTMPFreeAdapter(struct rt_rtmp_adapter *pAd)

os_cookie = (struct os_cookie *)pAd->OS_Cookie;

- if (pAd->BeaconBuf)
- kfree(pAd->BeaconBuf);
+ kfree(pAd->BeaconBuf);

NdisFreeSpinLock(&pAd->MgmtRingLock);

@@ -264,8 +263,7 @@ void RTMPFreeAdapter(struct rt_rtmp_adapter *pAd)
release_firmware(pAd->firmware);

vfree(pAd); /* pci_free_consistent(os_cookie->pci_dev,sizeof(struct rt_rtmp_adapter),pAd,os_cookie->pAd_pa); */
- if (os_cookie)
- kfree(os_cookie);
+ kfree(os_cookie);
}

BOOLEAN OS_Need_Clone_Packet(void)
diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
index 652d879..ef84e06 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
@@ -2604,8 +2604,7 @@ void ieee80211_softmac_free(struct ieee80211_device *ieee)
cancel_delayed_work(&ieee->GPIOChangeRFWorkItem);

destroy_workqueue(ieee->wq);
- if(NULL != ieee->pDot11dInfo)
- kfree(ieee->pDot11dInfo);
+ kfree(ieee->pDot11dInfo);
up(&ieee->wx_sem);
}

diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_wx.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_wx.c
index 07d8dbc..ca414a9 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_wx.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_wx.c
@@ -735,7 +735,6 @@ int ieee80211_wx_set_gen_ie(struct ieee80211_device *ieee, u8 *ie, size_t len)
ieee->wpa_ie_len = len;
}
else{
- if (ieee->wpa_ie)
kfree(ieee->wpa_ie);
ieee->wpa_ie = NULL;
ieee->wpa_ie_len = 0;
diff --git a/drivers/staging/rtl8192e/ieee80211/ieee80211_wx.c b/drivers/staging/rtl8192e/ieee80211/ieee80211_wx.c
index cac340e..bb0ff26 100644
--- a/drivers/staging/rtl8192e/ieee80211/ieee80211_wx.c
+++ b/drivers/staging/rtl8192e/ieee80211/ieee80211_wx.c
@@ -862,7 +862,6 @@ int ieee80211_wx_set_gen_ie(struct ieee80211_device *ieee, u8 *ie, size_t len)
ieee->wpa_ie_len = len;
}
else{
- if (ieee->wpa_ie)
kfree(ieee->wpa_ie);
ieee->wpa_ie = NULL;
ieee->wpa_ie_len = 0;
diff --git a/drivers/staging/rtl8192u/ieee80211/cipher.c b/drivers/staging/rtl8192u/ieee80211/cipher.c
index 0b9e8a4..69dcc31 100644
--- a/drivers/staging/rtl8192u/ieee80211/cipher.c
+++ b/drivers/staging/rtl8192u/ieee80211/cipher.c
@@ -294,6 +294,5 @@ out:

void crypto_exit_cipher_ops(struct crypto_tfm *tfm)
{
- if (tfm->crt_cipher.cit_iv)
- kfree(tfm->crt_cipher.cit_iv);
+ kfree(tfm->crt_cipher.cit_iv);
}
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c
index d6f55c2..f0ba7f4 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c
@@ -855,7 +855,6 @@ int ieee80211_wx_set_gen_ie(struct ieee80211_device *ieee, u8 *ie, size_t len)
ieee->wpa_ie_len = len;
}
else{
- if (ieee->wpa_ie)
kfree(ieee->wpa_ie);
ieee->wpa_ie = NULL;
ieee->wpa_ie_len = 0;
diff --git a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
index 221be81..d5eafb5 100644
--- a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
+++ b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
@@ -1873,8 +1873,7 @@ static int r871x_mp_ioctl_hdl(struct net_device *dev,
goto _r871x_mp_ioctl_hdl_exit;
}
_r871x_mp_ioctl_hdl_exit:
- if (pparmbuf != NULL)
- kfree(pparmbuf);
+ kfree(pparmbuf);
return ret;
}

diff --git a/drivers/staging/serqt_usb2/serqt_usb2.c b/drivers/staging/serqt_usb2/serqt_usb2.c
index 27841ef..2be2d88 100644
--- a/drivers/staging/serqt_usb2/serqt_usb2.c
+++ b/drivers/staging/serqt_usb2/serqt_usb2.c
@@ -1098,8 +1098,7 @@ static void qt_close(struct usb_serial_port *port)

if (qt_port->write_urb) {
/* if this urb had a transfer buffer already (old tx) free it */
- if (qt_port->write_urb->transfer_buffer != NULL)
- kfree(qt_port->write_urb->transfer_buffer);
+ kfree(qt_port->write_urb->transfer_buffer);
usb_free_urb(qt_port->write_urb);
}

diff --git a/drivers/staging/tidspbridge/core/chnl_sm.c b/drivers/staging/tidspbridge/core/chnl_sm.c
index 3c05d7c..8381130 100644
--- a/drivers/staging/tidspbridge/core/chnl_sm.c
+++ b/drivers/staging/tidspbridge/core/chnl_sm.c
@@ -828,8 +828,7 @@ out_err:
free_chirp_list(&pchnl->io_requests);
free_chirp_list(&pchnl->free_packets_list);

- if (sync_event)
- kfree(sync_event);
+ kfree(sync_event);

if (pchnl->ntfy_obj) {
ntfy_delete(pchnl->ntfy_obj);
diff --git a/drivers/staging/tidspbridge/pmgr/dbll.c b/drivers/staging/tidspbridge/pmgr/dbll.c
index 2e20f78e..31da62b 100644
--- a/drivers/staging/tidspbridge/pmgr/dbll.c
+++ b/drivers/staging/tidspbridge/pmgr/dbll.c
@@ -272,8 +272,7 @@ void dbll_delete(struct dbll_tar_obj *target)
DBC_REQUIRE(refs > 0);
DBC_REQUIRE(zl_target);

- if (zl_target != NULL)
- kfree(zl_target);
+ kfree(zl_target);

}

diff --git a/drivers/staging/usbip/stub_main.c b/drivers/staging/usbip/stub_main.c
index f3a4096..076a7e5 100644
--- a/drivers/staging/usbip/stub_main.c
+++ b/drivers/staging/usbip/stub_main.c
@@ -264,11 +264,9 @@ void stub_device_cleanup_urbs(struct stub_device *sdev)

kmem_cache_free(stub_priv_cache, priv);

- if (urb->transfer_buffer != NULL)
- kfree(urb->transfer_buffer);
+ kfree(urb->transfer_buffer);

- if (urb->setup_packet != NULL)
- kfree(urb->setup_packet);
+ kfree(urb->setup_packet);

usb_free_urb(urb);
}
diff --git a/drivers/staging/vme/bridges/vme_ca91cx42.c b/drivers/staging/vme/bridges/vme_ca91cx42.c
index 42de83e..812b8f2 100644
--- a/drivers/staging/vme/bridges/vme_ca91cx42.c
+++ b/drivers/staging/vme/bridges/vme_ca91cx42.c
@@ -516,8 +516,7 @@ static int ca91cx42_alloc_resource(struct vme_master_resource *image,
if (existing_size != 0) {
iounmap(image->kern_base);
image->kern_base = NULL;
- if (image->bus_resource.name != NULL)
- kfree(image->bus_resource.name);
+ kfree(image->bus_resource.name);
release_resource(&image->bus_resource);
memset(&image->bus_resource, 0, sizeof(struct resource));
}
diff --git a/drivers/staging/vme/bridges/vme_tsi148.c b/drivers/staging/vme/bridges/vme_tsi148.c
index 26ea42f..c1eacaa 100644
--- a/drivers/staging/vme/bridges/vme_tsi148.c
+++ b/drivers/staging/vme/bridges/vme_tsi148.c
@@ -821,8 +821,7 @@ static int tsi148_alloc_resource(struct vme_master_resource *image,
if (existing_size != 0) {
iounmap(image->kern_base);
image->kern_base = NULL;
- if (image->bus_resource.name != NULL)
- kfree(image->bus_resource.name);
+ kfree(image->bus_resource.name);
release_resource(&image->bus_resource);
memset(&image->bus_resource, 0, sizeof(struct resource));
}
diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c
index 4fbacf8..8d6a1e1 100644
--- a/drivers/staging/vt6655/device_main.c
+++ b/drivers/staging/vt6655/device_main.c
@@ -3064,8 +3064,7 @@ else {
}

error1:
- if(buffer)
- kfree(buffer);
+ kfree(buffer);

if(filp_close(filp,NULL))
printk("Config_FileOperation:close file fail\n");
diff --git a/drivers/staging/vt6655/hostap.c b/drivers/staging/vt6655/hostap.c
index 5b83f94..7735027 100644
--- a/drivers/staging/vt6655/hostap.c
+++ b/drivers/staging/vt6655/hostap.c
@@ -860,8 +860,7 @@ int vt6655_hostap_ioctl(PSDevice pDevice, struct iw_point *p)
}

out:
- if (param != NULL)
- kfree(param);
+ kfree(param);

return ret;
}
diff --git a/drivers/staging/vt6655/wpactl.c b/drivers/staging/vt6655/wpactl.c
index 4bdb836..fbae16d 100644
--- a/drivers/staging/vt6655/wpactl.c
+++ b/drivers/staging/vt6655/wpactl.c
@@ -987,8 +987,7 @@ int wpa_ioctl(PSDevice pDevice, struct iw_point *p)
}

out:
- if (param != NULL)
- kfree(param);
+ kfree(param);

return ret;
}
diff --git a/drivers/staging/vt6656/firmware.c b/drivers/staging/vt6656/firmware.c
index 1625412..8c8126a 100644
--- a/drivers/staging/vt6656/firmware.c
+++ b/drivers/staging/vt6656/firmware.c
@@ -109,8 +109,7 @@ FIRMWAREbDownload(
result = TRUE;

out:
- if (pBuffer)
- kfree(pBuffer);
+ kfree(pBuffer);

spin_lock_irq(&pDevice->lock);
return result;
diff --git a/drivers/staging/vt6656/hostap.c b/drivers/staging/vt6656/hostap.c
index f70e922..51b5adf 100644
--- a/drivers/staging/vt6656/hostap.c
+++ b/drivers/staging/vt6656/hostap.c
@@ -858,8 +858,7 @@ int vt6656_hostap_ioctl(PSDevice pDevice, struct iw_point *p)
}

out:
- if (param != NULL)
- kfree(param);
+ kfree(param);

return ret;
}
diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c
index 56ce9be..61b6121 100644
--- a/drivers/staging/vt6656/main_usb.c
+++ b/drivers/staging/vt6656/main_usb.c
@@ -837,8 +837,7 @@ static void device_free_tx_bufs(PSDevice pDevice)
usb_kill_urb(pTxContext->pUrb);
usb_free_urb(pTxContext->pUrb);
}
- if (pTxContext)
- kfree(pTxContext);
+ kfree(pTxContext);
}
return;
}
@@ -861,8 +860,7 @@ static void device_free_rx_bufs(PSDevice pDevice)
if (pRCB->skb)
dev_kfree_skb(pRCB->skb);
}
- if (pDevice->pRCBMem)
- kfree(pDevice->pRCBMem);
+ kfree(pDevice->pRCBMem);

return;
}
@@ -878,8 +876,7 @@ static void usb_device_reset(PSDevice pDevice)

static void device_free_int_bufs(PSDevice pDevice)
{
- if (pDevice->intBuf.pDataBuf != NULL)
- kfree(pDevice->intBuf.pDataBuf);
+ kfree(pDevice->intBuf.pDataBuf);
return;
}

@@ -1480,8 +1477,7 @@ error2:
*/

if(result!=0) {
- if(buffer)
- kfree(buffer);
+ kfree(buffer);
buffer=NULL;
}
return buffer;
diff --git a/drivers/staging/vt6656/wpactl.c b/drivers/staging/vt6656/wpactl.c
index 7fd300f..8752736 100644
--- a/drivers/staging/vt6656/wpactl.c
+++ b/drivers/staging/vt6656/wpactl.c
@@ -999,8 +999,7 @@ int wpa_ioctl(PSDevice pDevice, struct iw_point *p)
}

out:
- if (param != NULL)
- kfree(param);
+ kfree(param);

return ret;
}
diff --git a/drivers/staging/winbond/wb35reg.c b/drivers/staging/winbond/wb35reg.c
index 42ae610..da595f1 100644
--- a/drivers/staging/winbond/wb35reg.c
+++ b/drivers/staging/winbond/wb35reg.c
@@ -66,8 +66,7 @@ unsigned char Wb35Reg_BurstWrite(struct hw_data *pHwData, u16 RegisterNo, u32 *p
} else {
if (urb)
usb_free_urb(urb);
- if (reg_queue)
- kfree(reg_queue);
+ kfree(reg_queue);
return false;
}
return false;
diff --git a/drivers/staging/wlan-ng/prism2fw.c b/drivers/staging/wlan-ng/prism2fw.c
index fd5ddb2..729d03d 100644
--- a/drivers/staging/wlan-ng/prism2fw.c
+++ b/drivers/staging/wlan-ng/prism2fw.c
@@ -443,8 +443,7 @@ void free_chunks(struct imgchunk *fchunk, unsigned int *nfchunks)
{
int i;
for (i = 0; i < *nfchunks; i++) {
- if (fchunk[i].data != NULL)
- kfree(fchunk[i].data);
+ kfree(fchunk[i].data);
}
*nfchunks = 0;
memset(fchunk, 0, sizeof(*fchunk));
--
1.7.3.4


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