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Ido Yariv c24ec83bca wlcore: Prevent processing of work items during op_stop 
The interrupt line is disabled in op_stop using disable_irq. Since
pending interrupts are synchronized, the mutex has to be released before
disabling the interrupt to avoid a deadlock with the interrupt handler.

In addition, the internal state of the driver is only set to 'off'
after the interrupt is disabled. Otherwise, if an interrupt fires after
the state is set but before the interrupt line is disabled, the
interrupt handler will not be able to acknowledge the interrupt
resulting in an interrupt storm.

The driver's operations might be called during recovery. If these
acquire the mutex after it was released by op_stop, but before the
driver's state is changed, they may queue new work items instead of just
failing. This is especially problematic in the case of scans, in which a
new scan may be scheduled after all scan requests were cancelled.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
 		2012-07-10 12:10:14 -04:00
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accessibility
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acpi x86, realmode: Unbreak the ia64 build of drivers/acpi/sleep.c 2012-05-30 10:12:48 -07:00
amba arm-soc: driver specific updates 2012-05-26 12:22:27 -07:00
ata arm-soc: clock driver changes 2012-05-26 12:42:29 -07:00
atm solos-pci: Fix DMA support 2012-05-24 16:22:53 -04:00
auxdisplay
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base Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-06-01 10:34:35 -07:00
bcma bcma: use custom printing functions 2012-07-09 16:36:36 -04:00
block mtip32xx: Changes to sysfs entries 2012-05-31 08:46:50 +02:00
bluetooth Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless 2012-07-09 16:34:34 -04:00
cdrom
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char Merge branch 'drm-core-next' of git://people.freedesktop.org/~airlied/linux 2012-05-24 12:42:54 -07:00
clk arm-soc: soc specific changes, part 2 2012-05-26 13:05:55 -07:00
clocksource
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connector
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cpufreq
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cpuidle
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crypto arm-soc: clock driver changes 2012-05-26 12:42:29 -07:00
dca
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devfreq Power management updates for 3.5 2012-05-23 14:07:06 -07:00
dio
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dma arm-soc: device tree conversions, part 2 2012-05-26 12:57:47 -07:00
edac Merge branch 'x86/trampoline' into x86/urgent 2012-05-30 12:11:32 -07:00
eisa
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extcon Driver core pull for 3.5-rc1 2012-05-22 16:02:13 -07:00
firewire IEEE 1394 (FireWire) subsystem updates post v3.4: 2012-05-24 12:57:47 -07:00
firmware
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gpio Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2012-05-29 18:27:19 -07:00
gpu Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux 2012-06-01 15:40:29 -07:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-05-22 19:22:50 -07:00
hsi
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hv Driver core pull for 3.5-rc1 2012-05-22 16:02:13 -07:00
hwmon hwmon/sch56xx: Depend on watchdog for watchdog core functions 2012-05-30 07:56:20 +02:00
hwspinlock
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i2c i2c: Split I2C_M_NOSTART support out of I2C_FUNC_PROTOCOL_MANGLING 2012-05-30 10:55:34 +02:00
ide
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idle
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ieee802154 drivers/ieee802154: IEEE 802.15.4 loopback driver 2012-05-16 15:17:08 -04:00
iio iio: Use dev_to_iio_dev() 2012-05-14 13:37:45 -07:00
infiniband InfiniBand/RDMA changes for the 3.5 merge window: 2012-05-21 17:54:55 -07:00
input i2c: Split I2C_M_NOSTART support out of I2C_FUNC_PROTOCOL_MANGLING 2012-05-30 10:55:34 +02:00
iommu IOMMU Updates for Linux 3.5 2012-05-30 08:49:28 -07:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-05-24 11:54:29 -07:00
leds leds: add LM3533 LED driver 2012-05-29 16:22:32 -07:00
lguest
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macintosh
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md Improve multipath's retrying mechanism in some defined circumstances 2012-06-02 17:39:40 -07:00
media arm-soc: clock driver changes 2012-05-26 12:42:29 -07:00
memory memory: tegra{20,30}-mc: Remove empty *_remove() 2012-05-14 12:52:52 -07:00
memstick
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message Merge branch 'akpm' (Andrew's patch-bomb) 2012-05-31 18:10:18 -07:00
mfd ARM: ux500: Provide regulator support for SMSC911x via Device Tree 2012-06-01 02:04:46 +02:00
misc MFD changes for 3.5 2012-05-29 11:53:11 -07:00
mmc arm-soc: device tree conversions, part 2 2012-05-26 12:57:47 -07:00
mtd - More robust parsing especially of xattr data in JFFS2 2012-06-01 16:55:42 -07:00
net wlcore: Prevent processing of work items during op_stop 2012-07-10 12:10:14 -04:00
nfc NFC: Add ISO 14443 type B protocol 2012-07-09 16:42:24 -04:00
nubus
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of Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2012-05-29 18:27:19 -07:00
oprofile
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parisc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-05-22 19:22:50 -07:00
parport Driver core pull for 3.5-rc1 2012-05-22 16:02:13 -07:00
pci Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2012-05-29 18:27:19 -07:00
pcmcia
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pinctrl pinctrl-nomadik: Allow Device Tree driver probing 2012-06-01 02:03:25 +02:00
platform apple-gmux: Fix up the suspend/resume patch 2012-06-01 15:18:52 -04:00
pnp
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power A bunch of fixes for v3.5, nothing extraordinary. 2012-05-31 12:10:15 -07:00
pps
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ps3
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ptp Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-05-22 19:22:50 -07:00
rapidio rapidio/tsi721: add DMA engine support 2012-05-31 17:49:31 -07:00
regulator MFD changes for 3.5 2012-05-29 11:53:11 -07:00
remoteproc IOMMU Updates for Linux 3.5 2012-05-30 08:49:28 -07:00
rpmsg
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rtc drivers/rtc/rtc-s3c.c: fix compiler warning 2012-05-29 16:22:34 -07:00
s390 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2012-05-31 10:51:10 -07:00
sbus
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scsi SCSI misc on 20120531 2012-05-31 12:02:41 -07:00
sfi
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sh sh: intc: Kill off special reservation interface. 2012-05-22 19:07:55 +09:00
sn
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spi arm-soc: soc specific changes, part 2 2012-05-26 13:05:55 -07:00
ssb ssb: add missing PCI ID for b/g/n single band BCM4322 2012-06-11 14:59:44 -04:00
staging mm/fs: route MADV_REMOVE to FALLOC_FL_PUNCH_HOLE 2012-05-29 16:22:22 -07:00
target Merge branch 'sbp-target-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2012-05-23 16:52:27 -07:00
tc
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thermal
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tty tty: Revert the tty locking series, it needs more work 2012-06-02 15:21:43 -07:00
uio uio_pdrv_genirq: get irq through platform resource if not set otherwise 2012-05-15 08:44:58 -07:00
usb arm-soc: clock driver changes 2012-05-26 12:42:29 -07:00
uwb
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vhost Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-05-16 22:17:37 -04:00
video fbdev updates for 3.5 2012-06-01 16:57:51 -07:00
virt
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virtio virtio-mmio: Devices parameter parsing 2012-05-22 12:16:15 +09:30
vlynq
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vme
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w1 arm-soc: clock driver changes 2012-05-26 12:42:29 -07:00
watchdog watchdog: iTCO_wdt.c: fix printk format warnings 2012-05-30 08:16:48 +02:00
xen Merge branch 'x86-trampoline-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-05-29 20:14:53 -07:00
zorro
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Kconfig Staging tree pull request for 3.5-rc1 2012-05-22 16:34:21 -07:00
Makefile arm-soc: driver specific updates 2012-05-26 12:22:27 -07:00