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5395353e0c
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Benedikt Spranger 5395353e0c usb-gadget-ether: prevent oops caused by error interrupt race 
Fix a longstanding race in the Ethernet gadget driver, which can cause an
oops on device disconnect.  The fix is just to make the TX path check
whether its freelist is empty.  That check is otherwise not necessary,
since the queue is always stopped when that list empties (and restarted
when request completion puts an entry back on that freelist).

The race window starts when the network code decides to transmit a packet,
and ends when hard_start_xmit() grabs the freelist lock.  When disconnect()
is called inside that window, it shuts down the TX queue and breaks the
otherwise-solid assumption that packets are never sent through a TX queue
that's stopped.

Signed-off-by: Benedikt Spranger <bene@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:55:30 -07:00
..
acorn/char
acpi Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6 2007-10-11 19:20:44 -07:00
amba
ata Merge branch 'upstream-fixes' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev 2007-10-11 21:47:20 -07:00
atm [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
auxdisplay cfag12864b fix 2007-08-22 19:52:46 -07:00
base Driver core: fix SYSF_DEPRECATED breakage for nested classdevs 2007-10-07 16:42:22 -07:00
block Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2007-10-11 21:55:47 -07:00
bluetooth [Bluetooth] Add missing stat.byte_rx counter modification 2007-09-09 08:39:27 +02:00
cdrom [POWERPC] iSeries: Move detection of virtual cdroms 2007-10-11 20:40:47 +10:00
char Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2007-10-11 21:55:47 -07:00
clocksource
connector [NET]: make netlink user -> kernel interface synchronious 2007-10-10 21:15:29 -07:00
cpufreq
crypto [CRYPTO] sha: Add header file for SHA definitions 2007-10-10 16:55:50 -07:00
dio
dma [IOAT]: ioatdma needs to to play nice in a multi-dma-client world 2007-08-26 18:35:40 -07:00
edac drivers/edac: fix e752x correct return code 2007-09-11 17:21:19 -07:00
eisa
fc4
firewire firewire: point to migration document 2007-10-07 13:48:41 +02:00
firmware drivers/firmware: const-ify DMI API and internals 2007-10-09 20:22:20 -04:00
hid
hwmon drivers/firmware: const-ify DMI API and internals 2007-10-09 20:22:20 -04:00
i2c i2c-algo-bit: Read block data bugfix 2007-09-09 22:29:14 +02:00
ide Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6 2007-10-11 19:20:44 -07:00
ieee1394 [NET]: Move hardware header operations out of netdevice. 2007-10-10 16:52:52 -07:00
infiniband Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband 2007-10-11 19:43:13 -07:00
input drivers/firmware: const-ify DMI API and internals 2007-10-09 20:22:20 -04:00
isdn [ISDN]: Change I4L to use alloc_netdev(). 2007-10-10 16:54:57 -07:00
kvm KVM: Fix virtualization menu help text 2007-09-22 12:55:18 -07:00
leds leds: Update Cobalt Qube series front LED support 2007-10-11 22:24:00 +01:00
lguest fix modules oopsing in lguest guests 2007-09-25 08:51:04 -07:00
macintosh [POWERPC] adbhid: Enable KEY_FN key reporting 2007-09-22 14:49:21 +10:00
mca
md Drop 'size' argument from bio_endio and bi_end_io 2007-10-10 09:25:57 +02:00
media Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2007-10-11 19:40:14 -07:00
message [NET]: Nuke SET_MODULE_OWNER macro. 2007-10-10 16:51:13 -07:00
mfd
misc Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2007-10-11 21:55:47 -07:00
mmc mmc: don't use weight32() 2007-10-11 19:09:08 +02:00
mtd [POWERPC] Cleanups for physmap_of.c (v2) 2007-09-20 07:37:16 -05:00
net [TG3]: Fix APE induced regression 2007-10-11 22:17:20 -07:00
nubus
of
oprofile
parisc [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
parport
pci i386: move pci 2007-10-11 11:16:36 +02:00
pcmcia
pnp drivers/firmware: const-ify DMI API and internals 2007-10-09 20:22:20 -04:00
power [PATCH] missing null termination in power supply uevent 2007-09-21 01:22:23 +04:00
ps3
rapidio
rtc rtc: rtc-ds1553.c should use resource_size_t for base address 2007-09-19 11:24:17 -07:00
s390 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2007-10-11 19:40:14 -07:00
sbus
scsi Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2007-10-11 19:40:14 -07:00
serial Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2007-10-11 21:55:47 -07:00
sh
sn
spi spi_mpc83xx: hang fix 2007-09-11 17:21:19 -07:00
ssb [SSB]: Sparse fixes. 2007-10-10 16:52:21 -07:00
tc
telephony
uio
usb usb-gadget-ether: prevent oops caused by error interrupt race 2007-10-12 14:55:30 -07:00
video Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2007-10-11 21:55:47 -07:00
w1 missing null termination in one wire uevent 2007-09-25 08:51:04 -07:00
xen
zorro zorro: Make sysfs config attribute read-only 2007-08-22 19:52:45 -07:00
Kconfig [SSB]: add Sonics Silicon Backplane bus support 2007-10-10 16:51:36 -07:00
Makefile [SSB]: add Sonics Silicon Backplane bus support 2007-10-10 16:51:36 -07:00