linux-sg2042/drivers
Russell King - ARM Linux 98838f90d9 ARM: PL08x: fix deadlock in terminate_all
Trying to disable a tasklet while holding a spinlock which the tasklet
will take is a recipe for deadlock - tasklet_disable() will wait for the
tasklet to finish running, which it will never do.  In any case, there
is not a corresponding tasklet_enable(), so once the tasklet is disabled,
it will never run again until reboot.

It's safe to just remove the tasklet_disable() as we remove all current
and pending descriptors before releasing this spinlock.  This means that
the tasklet will find no remaining work if it subsequently runs.

The only remaining issue is that the callback for an already submitted
txd may be in progress, or even called after terminate_all() returns.
There's not much that can be done about that as waiting for the callback
to complete before returning will also lead to deadlocks.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-04 19:16:10 -08:00
..
accessibility
acpi ACPI: debugfs custom_method open to non-root 2010-11-13 09:52:16 -08:00
amba
ata sata_via: apply magic FIFO fix to vt6420 too 2010-11-19 13:16:26 -05:00
atm solos: Refuse to upgrade firmware with older FPGA. It doesn't work. 2010-11-08 12:17:05 -08:00
auxdisplay
base PM: Allow devices to be removed during late suspend and early resume 2010-11-11 01:50:53 +01:00
block Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block 2010-11-27 07:17:50 +09:00
bluetooth Bluetooth: Add MacBookAir3,1(2) support 2010-11-09 01:08:53 -02:00
cdrom cdrom: gdrom: ctrl_in/outX to __raw_read/writeX conversion. 2010-10-27 14:33:39 +09:00
char tpm: Autodetect itpm devices 2010-11-30 09:18:01 +11:00
clocksource ARM: shmobile: remove sh_timer_config clk member 2010-10-31 10:40:39 -04:00
connector connector: remove lazy workqueue creation 2010-10-24 14:20:01 -07:00
cpufreq
cpuidle
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2010-11-13 09:55:56 -08:00
dca
dio
dma ARM: PL08x: fix deadlock in terminate_all 2011-01-04 19:16:10 -08:00
edac EDAC, MCE: Fix edac_init_mce_inject error handling 2010-11-22 15:35:32 +01:00
eisa
firewire Merge branch 'fwnet' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2010-11-28 12:24:20 -08:00
firmware dmi: log board, system, and BIOS information 2010-10-27 18:03:05 -07:00
gpio gpio: Add VIA VX855 GPIO driver 2010-10-29 00:29:51 +02:00
gpu Merge branch 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ickle/drm-intel 2010-11-19 10:28:13 -08:00
hid BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
hwmon hwmon: (lis3lv02d_i2c) Fix compile warnings 2010-11-22 12:23:39 -08:00
i2c i2c: Sanity checks on adapter registration 2010-11-15 22:40:38 +01:00
ide ide: clean up timed out request handling 2010-10-26 10:17:30 -07:00
idle Merge branch 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6 2010-10-26 17:28:07 -07:00
ieee802154
infiniband BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2010-11-19 10:31:04 -08:00
isdn isdn: icn: Fix stack corruption bug. 2010-11-24 11:19:05 -08:00
leds drivers/leds/leds-lp5523.c: perform SW reset before detection 2010-11-25 06:50:44 +09:00
lguest
macintosh drivers/macintosh/adb-iop.c: flags should be unsigned long 2010-11-12 07:55:30 -08:00
mca
md md: Call blk_queue_flush() to establish flush/fua support 2010-11-24 16:40:33 +11:00
media BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
memstick
message SCSI host lock push-down 2010-11-16 13:33:23 -08:00
mfd mfd: Fix a memory leak when unload mc13xxx-core module 2010-10-29 00:30:43 +02:00
misc drivers/misc/isl29020.c: remove incorrect kfree in isl29020_remove() 2010-11-25 06:50:47 +09:00
mmc mmc: sdhci: 8-bit bus width changes 2010-11-22 15:12:04 -05:00
mtd UBI: release locks in check_corruption 2010-11-19 15:19:40 +02:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2010-11-29 14:36:33 -08:00
nubus
of
oprofile Merge branches 'perf-fixes-for-linus' and 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-10-30 11:43:26 -07:00
parisc BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
parport Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-10-24 13:41:39 -07:00
pci Merge branch 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile 2010-11-25 07:42:03 +09:00
pcmcia drivers/pcmcia/soc_common.c: Use printf extension %pV 2010-11-10 14:31:28 +01:00
platform Remove duplicate includes from many files 2010-10-27 18:03:18 -07:00
pnp BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
power power: Revert "power_supply: Mark twl4030_charger as broken" 2010-10-29 00:30:44 +02:00
pps
ps3
rapidio rapidio: use resource_size() 2010-11-12 07:55:30 -08:00
regulator regulator: max8998 BUCK1/2 voltage change with use of GPIOs 2010-10-29 00:30:15 +02:00
rtc Merge branches 'sh/rtc' and 'common/clkfwk' into sh/urgent 2010-11-10 18:15:44 +09:00
s390 [S390] qdio: free indicator after reset is finished 2010-11-25 09:52:59 +01:00
sbus Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6 2010-10-25 08:19:14 -07:00
scsi SCSI: arm fas216: fix missing ';' 2010-11-23 22:26:23 +00:00
serial BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
sfi
sh Merge branch 'common/clkfwk' into sh-fixes-for-linus 2010-11-19 16:43:23 +09:00
sn
spi Merge branch 'next-spi' of git://git.secretlab.ca/git/linux-2.6 2010-11-01 07:50:43 -04:00
ssb ssb: b43-pci-bridge: Add new vendor for BCM4318 2010-11-22 15:19:31 -05:00
staging Fix build failure at cx25821-video driver 2010-11-18 11:42:05 -08:00
tc
telephony Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
thermal
tty Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2010-11-19 10:31:04 -08:00
uio Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-10-24 13:41:39 -07:00
usb Merge branch 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6 2010-11-24 08:21:43 +09:00
uwb UWB: Return UWB_RSV_ALLOC_NOT_FOUND rather than crashing on NULL dereference if kzalloc fails 2010-11-11 07:14:07 -08:00
vhost vhost/net: fix rcu check usage 2010-11-25 11:29:16 +02:00
video Merge master.kernel.org:/home/rmk/linux-2.6-arm 2010-11-25 07:41:10 +09:00
virtio virtio: fix format of sysfs driver/vendor files 2010-11-24 15:21:12 +10:30
vlynq
w1 w1: don't allow arbitrary users to remove w1 devices 2010-10-27 18:03:17 -07:00
watchdog WATCHDOG: octeon-wdt: Use I/O clock rate for timing calculations. 2010-10-29 19:08:42 +01:00
xen Merge branch 'upstream/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen 2010-11-24 08:23:18 +09:00
zorro BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
Kconfig
Makefile TTY: create drivers/tty and move the tty core files there 2010-11-05 08:10:33 -07:00