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Christian Lamparter b3e670443b USB: fix thread-unsafe anchor utiliy routines 
This patch fixes a race condition in two utility routines
related to the removal/unlinking of urbs from an anchor.

If two threads are concurrently accessing the same anchor,
both could end up with the same urb - thinking they are
the exclusive owner.

Alan Stern pointed out a related issue in
usb_unlink_anchored_urbs:

"The URB isn't removed from the anchor until it completes
 (as a by-product of completion, in fact), which might not
 be for quite some time after the unlink call returns.
 In the meantime, the subroutine will keep trying to unlink
 it, over and over again."

Cc: stable <stable@kernel.org>
Cc: Oliver Neukum <oneukum@suse.de>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
 		2010-08-10 14:35:45 -07:00
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accessibility
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acpi Merge branch 'acpica' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2010-08-07 17:08:30 -07:00
amba
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ata Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq 2010-08-07 12:42:58 -07:00
atm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2010-08-09 21:05:52 -07:00
auxdisplay
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base drivers/base/node.c: reduce stack usage of node_read_meminfo() 2010-08-09 20:45:02 -07:00
block Merge branch 'virtio' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus 2010-08-05 13:49:37 -07:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 2010-08-06 12:25:06 -07:00
cdrom
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char Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2010-08-09 21:05:52 -07:00
clocksource
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connector
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cpufreq [CPUFREQ] fix brace coding style issue. 2010-08-03 13:47:05 -04:00
cpuidle cpuidle: extend cpuidle and menu governor to handle dynamic states 2010-08-09 20:45:04 -07:00
crypto Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6 2010-08-05 15:57:35 -07:00
dca
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dio
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dma Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx 2010-08-09 21:00:07 -07:00
edac amd64_edac: Minor formatting fix 2010-08-04 11:16:01 +02:00
eisa
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firewire Merge firewire branches to be released post v2.6.35 2010-08-02 10:09:04 +02:00
firmware edd: fix possible memory leak in edd_init() error path 2010-08-09 20:45:09 -07:00
gpio Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6 2010-08-05 15:57:35 -07:00
gpu drm: fix fallouts from slow-work -> wq conversion 2010-08-09 12:18:44 +02:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2010-08-04 15:23:49 -07:00
hwmon hwmon: f71882fg: add support for the Fintek F71808E 2010-08-09 20:45:10 -07:00
i2c Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6 2010-08-05 15:57:35 -07:00
ide tx493xide: use min_t() macro instead of min() 2010-08-09 03:17:55 -07:00
idle Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq 2010-08-04 11:13:36 -07:00
ieee1394 Merge firewire branches to be released post v2.6.35 2010-08-02 10:09:04 +02:00
ieee802154
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infiniband Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband 2010-08-07 17:08:02 -07:00
input Revert "Input: appletouch - fix integer overflow issue" 2010-08-09 13:48:08 +10:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2010-08-09 21:05:52 -07:00
leds leds: Remove owner field from attribute initialization in bd2802 driver 2010-08-05 13:53:35 -07:00
lguest
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macintosh Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-08-06 13:25:43 -07:00
mca
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md
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media Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2010-08-07 17:09:24 -07:00
memstick
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message Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-08-04 15:31:02 -07:00
mfd
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misc hmc6352: add driver for the HMC6352 compass 2010-08-09 20:45:10 -07:00
mmc Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 2010-08-06 12:25:06 -07:00
mtd Merge git://git.infradead.org/mtd-2.6 2010-08-10 11:49:21 -07:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2010-08-09 21:05:52 -07:00
nubus
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of
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oprofile
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parisc Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-08-04 15:31:02 -07:00
parport Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 2010-08-06 12:25:06 -07:00
pci Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx 2010-08-09 21:00:07 -07:00
pcmcia Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 2010-08-06 12:25:06 -07:00
platform ips driver: make it less chatty 2010-08-03 11:55:15 -04:00
pnp
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power POWER: Add JZ4740 battery driver. 2010-08-05 13:26:20 +01:00
pps
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ps3
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rapidio
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regulator regulator: Remove owner field from attribute initialization in regulator core driver 2010-08-05 13:53:35 -07:00
rtc Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus 2010-08-05 08:53:20 -07:00
s390 s390: remove WARN_ON for misc_deregister() failures 2010-08-09 20:45:06 -07:00
sbus Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6 2010-08-05 15:57:35 -07:00
scsi Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 2010-08-06 12:25:06 -07:00
serial Merge branch 'rs485fix' of git://www.jni.nu/cris 2010-08-09 21:04:23 -07:00
sfi
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sh
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sn
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spi
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ssb Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 2010-08-06 12:25:06 -07:00
staging USB: convert usb_hcd bitfields into atomic flags 2010-08-10 14:35:37 -07:00
tc
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telephony pcmcia: do not use io_req_t when calling pcmcia_request_io() 2010-08-03 09:04:11 +02:00
thermal
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uio uio: Remove IRQF_DISABLED flag from uio_cif.c 2010-08-05 13:53:33 -07:00
usb USB: fix thread-unsafe anchor utiliy routines 2010-08-10 14:35:45 -07:00
uwb
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vhost Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2010-08-04 11:47:58 -07:00
video drivers/video/w100fb.c: ignore void return value / fix build failure 2010-08-09 20:44:53 -07:00
virtio
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vlynq
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w1
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watchdog Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6 2010-08-05 15:57:35 -07:00
xen Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-08-06 13:25:43 -07:00
zorro
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Kconfig
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Makefile
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