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Christian Lamparter 5001960016 ar9170usb: fix read from freed driver context 
Commit "ar9170: wait for asynchronous firmware loading"
introduced a bug, which is triggered by fatal errors
while the driver is initializing the device.

BUG: unable to handle kernel paging request at 6b6b6bf7
IP: [<c117b567>] kobject_put+0x7/0x70
*pde = 00000000
Oops: 0000 [#1] PREEMPT
last sysfs file: /sys/devices/platform/hdaps/position
Modules linked in: ar9170usb [...]

Pid: 6246, comm: firmware/ar9170 Not tainted 2.6.34-wl #54
EIP: 0060:[<c117b567>] EFLAGS: 00010206 CPU: 0
EIP is at kobject_put+0x7/0x70
EAX: 6b6b6bd7 EBX: f4d3d0e0 ECX: f5ba9124 EDX: f6af2a7c
ESI: 00000000 EDI: f4d3d0e0 EBP: 00000000 ESP: f5e98f9c
 DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068
Process firmware/ar9170 (pid: 6246)
Stack:
 c12532ed 00000246 f5bfaa70 f8487353 f4d3d0e0
Call Trace:
 [<c12532ed>] ? device_release_driver+0x1d/0x30
 [<f8487353>] ? ar9170_usb_firmware_failed+0x43/0x70 [ar9170usb]
 [<c125983c>] ? request_firmware_work_func+0x2c/0x70
 [<c1259810>] ? request_firmware_work_func+0x0/0x70
 [<c10413f4>] ? kthread+0x74/0x80
 [<c1041380>] ? kthread+0x0/0x80
 [<c1003136>] ? kernel_thread_helper+0x6/0x10
Code: 40 d3 f2 ff 85 c0 89 c3 74 0a ba 44 86 4c c1 e8 [...]
EIP: [<c117b567>] kobject_put+0x7/0x70 SS:ESP 0068:f5e98f9c
CR2: 000000006b6b6bf7
---[ end trace e81abb992434b410 ]---

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-26 14:49:48 -04:00
..
accessibility
acpi Merge branch 'acpica' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2010-05-20 09:45:38 -07:00
amba
ata Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev 2010-05-20 09:27:37 -07:00
atm atm: select FW_LOADER in Kconfig for solos-pci 2010-05-17 17:44:36 -07:00
auxdisplay
base Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6 2010-05-20 09:03:55 -07:00
block Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-05-20 09:20:59 -07:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2010-05-20 21:04:44 -07:00
cdrom
char Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2010-05-20 10:33:06 -07:00
clocksource Merge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-05-19 17:10:57 -07:00
connector
cpufreq Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-05-18 08:49:13 -07:00
cpuidle
crypto
dca
dio
dma Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 2010-05-19 11:36:03 -07:00
edac
eisa
firewire Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-05-20 09:20:59 -07:00
firmware
gpio Merge branch 'topic/asoc' into for-linus 2010-05-20 12:00:43 +02:00
gpu Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-05-20 09:20:59 -07:00
hid USB: rename usb_buffer_alloc() and usb_buffer_free() users 2010-05-20 13:21:38 -07:00
hwmon
i2c Merge branch 'for-linus/i2c-2635' of git://git.fluff.org/bjdooks/linux 2010-05-20 09:41:17 -07:00
ide
idle
ieee1394
ieee802154
infiniband Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2010-05-20 21:04:44 -07:00
input Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6 2010-05-20 21:26:12 -07:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2010-05-20 21:04:44 -07:00
leds
lguest
macintosh
mca
md
media Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6 2010-05-20 21:26:12 -07:00
memstick
message
mfd Merge branch 'topic/asoc' into for-linus 2010-05-20 12:00:43 +02:00
misc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-05-20 09:20:59 -07:00
mmc Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm 2010-05-19 11:37:22 -07:00
mtd
net ar9170usb: fix read from freed driver context 2010-05-26 14:49:48 -04:00
nubus
of
oprofile
parisc
parport
pci Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-05-20 09:20:59 -07:00
pcmcia Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 2010-05-20 09:09:46 -07:00
platform
pnp
power
pps
ps3
rapidio
regulator Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-05-20 09:20:59 -07:00
rtc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-05-20 09:20:59 -07:00
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2010-05-20 21:04:44 -07:00
sbus
scsi Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2010-05-20 21:04:44 -07:00
serial Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 2010-05-20 09:09:46 -07:00
sfi
sh
sn
spi Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-05-20 09:20:59 -07:00
ssb Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2010-05-20 21:04:44 -07:00
staging Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6 2010-05-20 21:26:12 -07:00
tc
telephony
thermal
uio
usb Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6 2010-05-20 21:26:12 -07:00
uwb
vhost
video Merge branch 'viafb-next' of git://git.lwn.net/linux-2.6 2010-05-20 13:34:17 -07:00
virtio
vlynq
w1
watchdog USB: rename usb_buffer_alloc() and usb_buffer_free() users 2010-05-20 13:21:38 -07:00
xen
zorro m68k: amiga - Zorro host bridge platform device conversion 2010-05-17 21:37:42 +02:00
Kconfig
Makefile