Grazvydas Ignotas 70aba33f52 wl1251: fix potential crash ... commit 3f60ebc9d6 upstream. 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> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>		2010-04-01 15:58:37 -07:00
..
Kconfig	wl12xx: fix kconfig/link errors	2009-09-23 11:35:53 -04:00
Makefile	wl1251: remove wl1251_ops	2009-08-14 09:13:38 -04:00
wl12xx_80211.h
wl1251.h	wl1251: initialise default channel to zero	2009-08-14 09:13:40 -04:00
wl1251_acx.c	wl1251: rename reg.h to wl1251_reg.h	2009-08-14 09:13:41 -04:00
wl1251_acx.h	wl1251: remove wl1251_ops	2009-08-14 09:13:38 -04:00
wl1251_boot.c	wl1251: halt the embedded CPU before loading firmware	2009-08-20 11:36:02 -04:00
wl1251_boot.h	wl1251: remove wl1251_ops	2009-08-14 09:13:38 -04:00
wl1251_cmd.c	wl1251: hack to disable filters for fixing association	2009-08-14 09:13:42 -04:00
wl1251_cmd.h	wl1251: add channel to wl1251_cmd_join() parameters	2009-08-14 09:13:40 -04:00
wl1251_debugfs.c	wl1251: fix potential crash	2010-04-01 15:58:37 -07:00
wl1251_debugfs.h	wl1251: use wl1251 prefix everywhere	2009-07-10 14:57:50 -04:00
wl1251_event.c	wl1251: add hw scan completed debug message	2009-08-14 09:13:42 -04:00
wl1251_event.h	wl1251: use wl1251 prefix everywhere	2009-07-10 14:57:50 -04:00
wl1251_init.c	wl1251: rename reg.h to wl1251_reg.h	2009-08-14 09:13:41 -04:00
wl1251_init.h	wl1251: remove wl1251_ops	2009-08-14 09:13:38 -04:00
wl1251_io.c	wl1251: rename reg.h to wl1251_reg.h	2009-08-14 09:13:41 -04:00
wl1251_io.h	wl1251: make wl1251_set_partition bus agnostic	2009-08-14 09:13:37 -04:00
wl1251_main.c	spi: prefix modalias with "spi:"	2009-09-23 07:39:43 -07:00
wl1251_netlink.h	wl1251: use wl1251 prefix everywhere	2009-07-10 14:57:50 -04:00
wl1251_ps.c	wl1251: rename reg.h to wl1251_reg.h	2009-08-14 09:13:41 -04:00
wl1251_ps.h	wl1251: use wl1251 prefix everywhere	2009-07-10 14:57:50 -04:00
wl1251_reg.h	wl1251: correct definitions for 0th bit defines	2009-08-20 11:35:58 -04:00
wl1251_rx.c	wl1251: rename reg.h to wl1251_reg.h	2009-08-14 09:13:41 -04:00
wl1251_rx.h	wl12xx: fix spelling	2009-07-24 15:05:26 -04:00
wl1251_sdio.c	wl1251: remove Luciano as maintainer	2009-08-14 09:13:42 -04:00
wl1251_spi.c	wl1251: remove Luciano as maintainer	2009-08-14 09:13:42 -04:00
wl1251_spi.h	wl1251: rename reg.h to wl1251_reg.h	2009-08-14 09:13:41 -04:00
wl1251_tx.c	wl1251: rename reg.h to wl1251_reg.h	2009-08-14 09:13:41 -04:00
wl1251_tx.h	wl1251: use wl1251 prefix everywhere	2009-07-10 14:57:50 -04:00
wl1271.h	wl1271: add wl1271 driver files	2009-08-14 09:12:46 -04:00
wl1271_acx.c	wl1271: add wl1271 driver files	2009-08-14 09:12:46 -04:00
wl1271_acx.h	wl1271: add wl1271 driver files	2009-08-14 09:12:46 -04:00
wl1271_boot.c	wl1271: fix compiler warnings on 64 bit archs	2009-08-14 09:14:02 -04:00
wl1271_boot.h	wl1271: add wl1271 driver files	2009-08-14 09:12:46 -04:00
wl1271_cmd.c	wl1271: add wl1271 driver files	2009-08-14 09:12:46 -04:00
wl1271_cmd.h	wl1271: add wl1271 driver files	2009-08-14 09:12:46 -04:00
wl1271_debugfs.c	wl1271: add wl1271 driver files	2009-08-14 09:12:46 -04:00
wl1271_debugfs.h	wl1271: add wl1271 driver files	2009-08-14 09:12:46 -04:00
wl1271_event.c	wl1271: add wl1271 driver files	2009-08-14 09:12:46 -04:00
wl1271_event.h	wl1271: add wl1271 driver files	2009-08-14 09:12:46 -04:00
wl1271_init.c	wl1271: add wl1271 driver files	2009-08-14 09:12:46 -04:00
wl1271_init.h	wl1271: add wl1271 driver files	2009-08-14 09:12:46 -04:00
wl1271_main.c	wl12xx: Fix print_mac() conversion.	2009-09-17 10:18:30 -07:00
wl1271_ps.c	wl1271: add wl1271 driver files	2009-08-14 09:12:46 -04:00
wl1271_ps.h	wl1271: add wl1271 driver files	2009-08-14 09:12:46 -04:00
wl1271_reg.h	wl1271: add wl1271 driver files	2009-08-14 09:12:46 -04:00
wl1271_rx.c	wl1271: add wl1271 driver files	2009-08-14 09:12:46 -04:00
wl1271_rx.h	wl1271: add wl1271 driver files	2009-08-14 09:12:46 -04:00
wl1271_spi.c	wl1271: add wl1271 driver files	2009-08-14 09:12:46 -04:00
wl1271_spi.h	wl1271: add wl1271 driver files	2009-08-14 09:12:46 -04:00
wl1271_tx.c	wl1271: add wl1271 driver files	2009-08-14 09:12:46 -04:00
wl1271_tx.h	wl1271: add wl1271 driver files	2009-08-14 09:12:46 -04:00