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37b12dd2b0
linux-kernel-test/drivers
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Larry Finger 37b12dd2b0 rtl8187: Fix kernel oops when device is removed when LEDS enabled 
As reported by Rick Farina (sidhayn@gmail.com), removing the RTL8187
USB stick, or unloading the driver rtl8187 using rmmod will cause a
kernel oops.  There are at least two forms of the failure, (1) BUG:
Scheduling while atomic, and (2) a fatal kernel page fault. This
problem is reported in Bugzilla #14539.

This problem does not occur for kernel 2.6.31, but does for 2.6.32-rc2,
thus it is technically a regression; however, bisection did not locate
any faulty patch. The fix was found by comparing the faulty code in
rtl8187 with p54usb.  My interpretation is that the handling of work
queues in mac80211 changed enough to the LEDs to be unregistered
before tasks on the work queues are cancelled. Previously, these
actions could be done in either order.

(Herton Ronaldo Krzesinski <herton@mandriva.com.br> reports that the
code is the same in 2.6.31, so this may be a candidate for 2.6.31.x.
-- JWL)

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Reported-by: Rick Farina <sidhayn@gmail.com>
Tested-by: Rick Farina <sidhayn@gmail.com>
Cc: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-04 19:20:50 -05:00
..
accessibility
acpi Merge branch 'drm-intel-next' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel 2009-09-24 10:30:41 -07:00
amba
ata
atm net: Make setsockopt() optlen be unsigned. 2009-09-30 16:12:20 -07:00
auxdisplay
base
block Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus 2009-09-23 09:23:45 -07:00
bluetooth
cdrom sysctl: remove "struct file *" argument of ->proc_handler 2009-09-24 07:21:04 -07:00
char Merge branch 'drm-intel-next' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel 2009-09-24 10:30:41 -07:00
clocksource
connector connector: Fix incompatible pointer type warning 2009-10-06 01:39:51 -07:00
cpufreq
cpuidle
crypto
dca
dio
dma
edac edac: core: remove completion-wait for complete with rcu_barrier 2009-09-24 07:21:05 -07:00
eisa
firewire Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2009-09-23 09:43:22 -07:00
firmware
gpio Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging 2009-09-23 09:30:48 -07:00
gpu Merge branch 'drm-intel-next' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel 2009-09-24 10:30:41 -07:00
hid
hwmon Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging 2009-09-23 15:20:16 -07:00
i2c Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging 2009-09-23 09:30:48 -07:00
ide Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2009-09-23 09:32:11 -07:00
idle
ieee1394 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2009-09-23 09:43:22 -07:00
ieee802154
infiniband walk system ram range 2009-09-23 07:39:41 -07:00
input input: fix build failures caused by Kconfig Winbond WPCD376I Consumer IR hardware driver Kconfig entry 2009-09-24 07:20:56 -07:00
isdn isdn: fix possible circular locking dependency 2009-10-22 18:27:53 -07:00
leds Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2009-09-23 15:39:36 -07:00
lguest Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus 2009-09-23 09:23:45 -07:00
macintosh
mca
md dm/connector: Only process connector packages from privileged processes 2009-10-02 10:54:10 -07:00
media Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6 2009-09-24 07:54:16 -07:00
memstick memstick: move dev_dbg 2009-09-24 07:21:05 -07:00
message
mfd mfd/gpio: add a GPIO interface to the UCB1400 MFD chip driver via gpiolib 2009-09-23 07:39:48 -07:00
misc gru: allocation may fail in quicktest1() 2009-09-24 07:21:05 -07:00
mmc Merge branch 'for-linus' of git://neil.brown.name/md 2009-09-24 07:55:29 -07:00
mtd Merge branch 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze 2009-09-24 09:01:44 -07:00
net rtl8187: Fix kernel oops when device is removed when LEDS enabled 2009-11-04 19:20:50 -05:00
nubus
of of: remove "stm,m25p40" alias 2009-09-23 07:39:43 -07:00
oprofile cpumask: use zalloc_cpumask_var() where possible 2009-09-24 09:34:24 +09:30
parisc
parport sysctl: remove "struct file *" argument of ->proc_handler 2009-09-24 07:21:04 -07:00
pci Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2009-09-24 09:57:08 -07:00
pcmcia
platform sony-laptop: re-read the rfkill state when resuming from suspend 2009-09-28 16:55:08 -04:00
pnp Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2009-09-23 09:32:11 -07:00
power
pps
ps3
rapidio
regulator
rtc rtc: add boot_timesource sysfs attribute 2009-09-23 07:39:46 -07:00
s390 headers: utsname.h redux 2009-09-23 18:13:10 -07:00
sbus
scsi seq_file: constify seq_operations 2009-09-23 07:39:29 -07:00
serial pcnet_cs: add cis of PreMax PE-200 ethernet pcmcia card 2009-10-29 22:51:25 -07:00
sfi
sh
sn
spi spi: handle TX-only/RX-only 2009-09-23 07:39:44 -07:00
ssb ssb/sdio: fix printk format warnings 2009-09-23 11:35:41 -04:00
staging pohmelfs/connector: Disallow unpliviged users to configure pohmelfs 2009-10-02 10:54:15 -07:00
tc
telephony
thermal
uio
usb Merge branch 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze 2009-09-24 09:01:44 -07:00
uwb
video uvesafb/connector: Disallow unpliviged users to send netlink packets 2009-10-02 10:54:18 -07:00
virtio
vlynq drivers/vlynq/vlynq.c: fix resource size off by 1 error 2009-09-24 07:21:05 -07:00
w1 connector: Provide the sender's credentials to the callback 2009-10-02 10:54:01 -07:00
watchdog
xen
zorro
Kconfig
Makefile Merge git://git.infradead.org/mtd-2.6 2009-09-23 10:07:49 -07:00