3f60ebc9d6
In case debugfs does not init for some reason (or is disabled on older kernels) driver does not allocate stats.fw_stats structure, but tries to clear it later and trips on a NULL pointer: Unable to handle kernel NULL pointer dereference at virtual address 00000000 PC is at __memzero+0x24/0x80 Backtrace: [<bf0ddb88>] (wl1251_debugfs_reset+0x0/0x30 [wl1251]) [<bf0d6a2c>] (wl1251_op_stop+0x0/0x12c [wl1251]) [<bf0bc228>] (ieee80211_stop_device+0x0/0x74 [mac80211]) [<bf0b0d10>] (ieee80211_stop+0x0/0x4ac [mac80211]) [<c02deeac>] (dev_close+0x0/0xb4) [<c02deac0>] (dev_change_flags+0x0/0x184) [<c031f478>] (devinet_ioctl+0x0/0x704) [<c0320720>] (inet_ioctl+0x0/0x100) Add a NULL pointer check to fix this. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Acked-by: Kalle Valo <kalle.valo@iki.fi> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com> |
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.. | ||
ath | ||
b43 | ||
b43legacy | ||
hostap | ||
ipw2x00 | ||
iwlwifi | ||
iwmc3200wifi | ||
libertas | ||
libertas_tf | ||
orinoco | ||
p54 | ||
prism54 | ||
rt2x00 | ||
rtl818x | ||
wl12xx | ||
zd1211rw | ||
adm8211.c | ||
adm8211.h | ||
airo.c | ||
airo.h | ||
airo_cs.c | ||
at76c50x-usb.c | ||
at76c50x-usb.h | ||
atmel.c | ||
atmel.h | ||
atmel_cs.c | ||
atmel_pci.c | ||
Kconfig | ||
mac80211_hwsim.c | ||
Makefile | ||
mwl8k.c | ||
ray_cs.c | ||
ray_cs.h | ||
rayctl.h | ||
rndis_wlan.c | ||
wl3501.h | ||
wl3501_cs.c | ||
zd1201.c | ||
zd1201.h |