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android_kernel_motorola_sm6225/drivers
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Alan Stern cde217a556 USB: fix crash when URBs are unlinked after the device is gone 
This patch (as1151) protects usbcore against drivers that try to
unlink an URB after the URB's device or bus have been removed.  The
core does not currently check for this, and certain drivers can cause
a crash if they are running while an HCD is unloaded.

Certainly it would be best to fix the guilty drivers.  But a little
defensive programming doesn't hurt, especially since it appears that
quite a few drivers need to be fixed.

The patch prevents the problem by grabbing a reference to the device
while an unlink is in progress and using a new spinlock to synchronize
unlinks with device removal.  (There's no need to acquire a reference
to the bus as well, since the device structure itself keeps a
reference to the bus.)  In addition, the kerneldoc is updated to
indicate that URBs should not be unlinked after the disconnect method
returns.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-29 14:54:40 -07:00
..
accessibility
acpi ACPI suspend: build fix for ACPI_SLEEP=n && XEN_SAVE_RESTORE=y. 2008-10-25 04:07:13 -04:00
amba
ata Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev 2008-10-28 09:42:48 -07:00
atm
auxdisplay
base memory_probe: fix wrong sysfs file attribute 2008-10-20 08:52:32 -07:00
block [PATCH] sanitize blkdev_get() and friends 2008-10-21 07:49:06 -04:00
bluetooth btsdio: free sk_buff with kfree_skb 2008-10-26 23:08:48 -07:00
cdrom [PATCH] switch viocd 2008-10-21 07:48:21 -04:00
char Tidy up addresses in random drivers 2008-10-27 08:39:52 -07:00
clocksource Merge branches 'timers/clocksource', 'timers/hrtimers', 'timers/nohz', 'timers/ntp', 'timers/posixtimers' and 'timers/debug' into v28-timers-for-linus 2008-10-20 13:14:06 +02:00
connector
cpufreq
cpuidle Merge branch 'v28-range-hrtimers-for-linus-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-10-23 10:53:02 -07:00
crypto
dca device create: misc: convert device_create_drvdata to device_create 2008-10-16 09:24:43 -07:00
dio
dma Merge branch 'i7300_idle' into release 2008-10-25 04:07:44 -04:00
edac edac cell: fix incorrect edac_mode 2008-10-20 08:52:40 -07:00
eisa
firewire firewire: fw-sbp2: fix races 2008-10-26 10:27:01 +01:00
firmware x86: sysfs: kill owner field from attribute 2008-10-20 08:52:42 -07:00
gpio mfd: twl4030-gpio driver 2008-10-22 01:19:39 +02:00
gpu Merge branch 'drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 2008-10-23 10:18:40 -07:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2008-10-26 16:34:14 -07:00
hwmon hwmon: (abituguru3) enable DMI probing feature on AW9D-MAX 2008-10-26 17:04:40 +01:00
i2c Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6 2008-10-23 10:10:25 -07:00
ide arm ide breakage 2008-10-26 09:35:05 -07:00
idle i7300_idle: Cleanup based review comments 2008-10-24 12:55:14 -04:00
ieee1394 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2008-10-16 15:02:24 -07:00
infiniband Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband 2008-10-23 08:16:03 -07:00
input INPUT: sgi_btns: Add license specification 2008-10-27 16:18:28 +00:00
isdn device create: misc: convert device_create_drvdata to device_create 2008-10-16 09:24:43 -07:00
leds leds: da903x: fix the building failure of incomplete type of 'work' 2008-10-27 08:38:16 -07:00
lguest
macintosh device create: misc: convert device_create_drvdata to device_create 2008-10-16 09:24:43 -07:00
mca
md Merge branch 'for-linus' of git://neil.brown.name/md 2008-10-26 16:42:18 -07:00
media V4L/DVB (9336): cx88: always de-alloc frontends on fault condition 2008-10-21 14:32:12 -02:00
memstick [PATCH] switch memstick 2008-10-21 07:48:33 -04:00
message Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2008-10-23 13:02:03 -07:00
mfd mfd: Make WM8400 depend on I2C until SPI is submitted 2008-10-24 18:34:39 +02:00
misc intel_menlo: fix build warning 2008-10-23 00:43:47 -04:00
mmc [PATCH] switch mmc 2008-10-21 07:48:37 -04:00
mtd [PATCH] propagate mode through open_bdev_excl/close_bdev_excl 2008-10-21 07:49:00 -04:00
net libertas: free sk_buff with kfree_skb 2008-10-26 23:09:27 -07:00
nubus nubus: fix mis-indented statement 2008-10-16 11:21:30 -07:00
of Merge commit 'kumar/kumar-for-2.6.28' 2008-10-21 15:49:55 +11:00
oprofile Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile 2008-10-23 10:05:40 -07:00
parisc [PATCH] introduce fmode_t, do annotations 2008-10-21 07:47:06 -04:00
parport 8250: Oxford Semiconductor Devices 2008-10-23 09:31:09 -07:00
pci ACPI: Oops in ACPI with git latest 2008-10-25 04:07:14 -04:00
pcmcia Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-10-23 08:12:21 -07:00
pnp Merge branch 'linus' into test 2008-10-23 00:11:07 -04:00
power Merge git://git.infradead.org/battery-2.6 2008-10-20 09:44:30 -07:00
ps3 ps3: Add passthru support for non-audio streams 2008-10-20 08:05:15 +02:00
rapidio
regulator da903x: add regulator support for DA9030/DA9034 2008-10-13 21:51:57 +01:00
rtc Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 2008-10-23 10:20:15 -07:00
s390 [S390] tape: disable interrupts in tape_open and tape_release 2008-10-28 11:12:05 +01:00
sbus
scsi Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2008-10-23 13:02:03 -07:00
serial 8250: Add more OxSemi devices 2008-10-23 09:35:18 -07:00
sh
sn
spi Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2008-10-16 12:40:26 -07:00
ssb Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 2008-10-13 14:12:40 -07:00
staging staging: pcc_acpi: delete obsolete driver 2008-10-23 15:31:09 -04:00
tc
telephony phonedev: remove BKL 2008-10-20 08:52:36 -07:00
thermal
uio Merge branch 'bkl-removal' of git://git.lwn.net/linux-2.6 2008-10-20 13:42:14 -07:00
usb USB: fix crash when URBs are unlinked after the device is gone 2008-10-29 14:54:40 -07:00
uwb uwb: wrong sizeof argument in mac address compare 2008-10-20 14:37:53 +01:00
video Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-10-23 16:06:49 -07:00
virtio
w1 x86: sysfs: kill owner field from attribute 2008-10-20 08:52:42 -07:00
watchdog watchdog: Fix warning 2008-10-23 09:19:47 -07:00
xen xen: compilation fix of drivers/xen/events.c on IA64 2008-10-23 21:54:37 +02:00
zorro
Kconfig Merge branch 'master' into for-upstream 2008-10-20 16:07:19 +01:00
Makefile Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb 2008-10-26 16:35:46 -07:00