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Vladimir Kondratiev 9b1ba7b28e wil6210: hold wil->mutex while managing vrings 
To prevent race when connect flow may run in parallel with
the disconnect event.

Scenario leading to the bug is: while running connect flow on the AP,
STA sends disconnect. log follows.

<7>[  668.736269] wil6210 0000:01:00.0: wlan0: DBG[ WMI]Configure for connection CID 1
<7>[  668.736269] wil6210 0000:01:00.0: wlan0: DBG[MISC]wil_vring_init_tx() max_mpdu_size 2048
<7>[  668.736301] wil6210 0000:01:00.0: wlan0: DBG[MISC]wil_vring_alloc()
<7>[  668.736363] wil6210 0000:01:00.0: wlan0: DBG[MISC]vring[1024] 0xffbe8000:d962ce08 0xdb244000
<7>[  668.736394] wil6210 0000:01:00.0: wlan0: DBG[ WMI]Head 0x00880300 -> 0x00880308
<7>[  668.736394] wil6210 0000:01:00.0: wlan0: DBG[ WMI]WMI command 0x0821 [28]
<7>[  668.736426] DBG[ WMI]Cmd 00000000: 20 00 24 00 00 00 00 00 00 00 21 08 00 00 00 00   .$.......!.....
<7>[  668.736426] DBG[ WMI]cmd 00000000: 00 00 00 00 00 00 5f 5c 00 00 00 00 00 04 00 08  ......_\........
<7>[  668.736457] DBG[ WMI]cmd 00000010: 01 01 00 00 00 00 00 00 00 00 ff 0f              ............
<7>[  668.736488] wil6210 0000:01:00.0: wlan0: DBG[ IRQ]Pseudo IRQ 0x00000004
<7>[  668.736519] wil6210 0000:01:00.0: wlan0: DBG[ WMI]Handle WMI 0x1824 (reply_id 0x1821)
<7>[  668.736519] wil6210 0000:01:00.0: wlan0: DBG[ IRQ]wil6210_mask_irq_pseudo()
<7>[  668.736519] wil6210 0000:01:00.0: wlan0: DBG[ IRQ]ISR MISC 0x20000000
<7>[  668.736551] wil6210 0000:01:00.0: wlan0: DBG[ WMI]Handle WMI 0x1003 (reply_id 0x1821)
<7>[  668.736551] wil6210 0000:01:00.0: wlan0: DBG[ WMI]Disconnect 04:ce:14:00:07:70 reason [proto 3 wmi 4]
<7>[  668.736582] wil6210 0000:01:00.0: wlan0: DBG[MISC]wil6210_disconnect()
<7>[  668.736613] wil6210 0000:01:00.0: wlan0: DBG[ IRQ]Thread IRQ
<7>[  668.736613] wil6210 0000:01:00.0: wlan0: DBG[ IRQ]Thread ISR MISC 0x20000000
<7>[  668.736644] wil6210 0000:01:00.0: wlan0: DBG[ IRQ]MBOX event
<7>[  668.736644] wil6210 0000:01:00.0: wlan0: DBG[ WMI]Mbox head 00880330 tail 00880328
<7>[  668.736676] wil6210 0000:01:00.0: wlan0: DBG[ WMI]Mbox evt 001a 0010 0000 00
<7>[  668.736676] wil6210 0000:01:00.0: wlan0: DBG[ WMI]WMI event 0x1821 MID 0 @3255145 msec
<7>[  668.736707] DBG[ WMI]evt 00000000: 1a 00 10 00 00 00 00 10 00 00 21 18 69 ab 31 00  ..........!.i.1.
<7>[  668.736707] DBG[ WMI]evt 00000010: 01 01 00 00 00 00 00 00                          ........
<7>[  668.736738] wil6210 0000:01:00.0: wlan0: DBG[ WMI]queue_work -> 0
<7>[  668.736738] wil6210 0000:01:00.0: wlan0: DBG[ WMI]wmi_recv_cmd -> 1 events queued
<7>[  668.736769] wil6210 0000:01:00.0: wlan0: DBG[ IRQ]wil6210_unmask_irq_pseudo()
<7>[  668.736832] wil6210 0000:01:00.0: wlan0: DBG[MISC]Disconnect 04:ce:14:00:07:70, CID=1, reason=3
<7>[  668.736832] wil6210 0000:01:00.0: wlan0: DBG[MISC]wil_disconnect_cid(CID 1, status 1)
<7>[  668.736894] wil6210 0000:01:00.0: wlan0: DBG[MISC]wil_vring_fini_tx() id=1
<7>[  668.736894] wil6210 0000:01:00.0: wlan0: DBG[MISC]free Tx vring 1 [1024] 0xffbe8000:d962ce08 0xdb244000
<7>[  668.736957] wil6210 0000:01:00.0: wlan0: DBG[ WMI]Handle WMI 0x1821 (reply_id 0x1821)
<7>[  668.736988] wil6210 0000:01:00.0: wlan0: DBG[ WMI]Complete WMI 0x1821
<7>[  668.737019] wil6210 0000:01:00.0: wlan0: DBG[ WMI]wmi_call(0x0821->0x1821) completed in 0 msec
<3>[  668.737019] wil6210 0000:01:00.0: wlan0: Tx config failed, status 0x01
<7>[  668.739518] wil6210 0000:01:00.0: wlan0: DBG[MISC]wil_cfg80211_del_station(04:ce:14:00:07:70, reason=2)
<7>[  668.739550] wil6210 0000:01:00.0: wlan0: DBG[MISC]wil6210_disconnect()
<7>[  668.739550] wil6210 0000:01:00.0: wlan0: DBG[MISC]_wil6210_disconnect(bssid=04:ce:14:00:07:70, reason=2, ev-)
<7>[  668.739581] wil6210 0000:01:00.0: wlan0: DBG[MISC]Disconnect 04:ce:14:00:07:70, CID=-2, reason=2
<7>[  668.742705] wil6210 0000:01:00.0: wlan0: DBG[MISC]free Tx vring 1 [1024] 0x  (null):d962ce08 0x  (null)
<3>[  668.742736] __dma_free_remap: trying to free invalid coherent area:   (null)

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
 		2015-11-16 21:51:20 +02:00
..
accessibility
…
acpi ACPICA: Tables: Fix FADT dependency regression 2015-10-14 22:48:13 +02:00
amba
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android mm: mark most vm_operations_struct const 2015-09-10 13:29:01 -07:00
ata Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-09-03 16:55:55 -07:00
atm atm: iphase: fix misleading indention 2015-10-12 19:56:27 -07:00
auxdisplay auxdisplay: ks0108: initialize local parport variable 2015-08-14 17:27:17 -07:00
base Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-10-20 06:08:27 -07:00
bcma bcma: add support for population subnodes also when build as module 2015-09-29 10:59:27 +03:00
block rbd: use writefull op for object size writes 2015-10-16 16:49:01 +02:00
bluetooth Bluetooth: hci_bcm: checking for ERR_PTR instead of NULL 2015-10-22 11:32:47 +02:00
bus arm-cci500: Don't enable PMU driver by default 2015-09-28 16:31:17 -07:00
cdrom
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char Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2015-09-26 21:05:23 -04:00
clk Partially revert "clk: mvebu: Convert to clk_hw based provider APIs" 2015-10-14 11:28:17 -07:00
clocksource clocksource/drivers/keystone: Fix bad NO_IRQ usage 2015-09-29 14:33:51 +02:00
connector
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cpufreq cpufreq: intel_pstate: Fix divide by zero on Knights Landing (KNL) 2015-10-15 22:46:33 +02:00
cpuidle Additional power management and ACPI material for v4.3-rc1 2015-09-11 19:11:06 -07:00
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2015-09-26 21:05:23 -04:00
dca
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devfreq PM / devfreq: fix double kfree 2015-10-02 11:05:58 +09:00
dio
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dma dmaengine fixes for 4.3-rc4 2015-10-02 14:46:15 -04:00
dma-buf
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edac edac updates for v4.3-rc1 2015-09-11 16:21:12 -07:00
eisa
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extcon extcon: Fix attached value returned by is_extcon_changed 2015-09-21 15:07:19 +09:00
firewire
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firmware arm64/efi: Fix boot crash by not padding between EFI_MEMORY_RUNTIME regions 2015-10-01 12:51:28 +02:00
fmc
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gpio Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-09-18 08:11:42 -07:00
gpu drm/virtio: use %llu format string form atomic64_t 2015-10-16 11:36:36 +10:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2015-09-04 12:02:11 -07:00
hsi mm: mark most vm_operations_struct const 2015-09-10 13:29:01 -07:00
hv Drivers: hv: vmbus: fix init_vp_index() for reloading hv_netvsc 2015-09-20 22:44:51 -07:00
hwmon hwmon: (pwm-fan) Fix module autoload for OF platform driver 2015-09-20 17:50:19 -07:00
hwspinlock
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hwtracing/coresight coresight-etm4x: Support context-ID tracing when PID namespace is enabled 2015-08-05 13:30:15 -07:00
i2c i2c: designware: Do not use parameters from ACPI on Dell Inspiron 7348 2015-10-18 14:11:08 +02:00
ide
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idle intel_idle: Skylake Client Support - updated 2015-09-10 14:03:44 -04:00
iio This is the bulk of GPIO changes for the v4.3 kernel cycle: 2015-09-04 10:07:45 -07:00
infiniband Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-10-20 06:08:27 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2015-10-16 17:39:27 -07:00
iommu IOMMU Fixes for Linux v4.3-rc5 2015-10-13 10:09:59 -07:00
ipack
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irqchip Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-10-20 06:08:27 -07:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-10-24 06:54:12 -07:00
leds leds:lp55xx: Correct Kconfig dependency for f/w user helper 2015-09-17 10:02:20 +02:00
lguest
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macintosh powerpc updates for 4.3 2015-09-03 16:41:38 -07:00
mailbox Merge branch 'mailbox-for-next' of git://git.linaro.org/landing-teams/working/fujitsu/integration 2015-09-05 18:11:04 -07:00
mcb mcb: Fix error handling in mcb_pci_probe() 2015-10-05 05:10:01 +01:00
md dm thin: fix missing pool reference count decrement in pool_ctr error path 2015-10-13 12:20:55 -04:00
media media updates for v4.3-rc1 2015-09-11 16:42:39 -07:00
memory IOMMU Updates for Linux v4.3 2015-09-08 17:22:35 -07:00
memstick
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message mptfusion: prevent some memory corruption 2015-08-26 07:11:45 -07:00
mfd mfd: max77843: Fix max77843_chg_init() return on error 2015-10-01 16:31:42 +01:00
misc powerpc fixes for 4.3 #3 2015-10-16 12:07:43 -07:00
mmc mmc: sdhci-of-at91: use SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST quirk 2015-10-08 19:55:05 +02:00
mtd A few MTD fixes: 2015-10-07 09:35:15 +01:00
net wil6210: hold wil->mutex while managing vrings 2015-11-16 21:51:20 +02:00
nfc This is the bulk of GPIO changes for the v4.3 kernel cycle: 2015-09-04 10:07:45 -07:00
ntb NTB: Fix range check on memory window index 2015-09-07 15:27:12 -04:00
nubus
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nvdimm pmem: add proper fencing to pmem_rw_page() 2015-09-17 11:49:28 -04:00
nvmem nvmem: sunxi: Check for memory allocation failure 2015-10-04 12:09:43 +01:00
of Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-09-26 06:01:33 -04:00
oprofile
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parisc PCI: Revert "PCI: Call pci_read_bridge_bases() from core instead of arch code" 2015-09-15 13:18:04 -05:00
parport
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pci genirq/msi: Do not use pci_msi_[un]mask_irq as default methods 2015-10-16 12:40:43 +02:00
pcmcia pcmcia: soc_common: remove skt_dev_info's clk pointer 2015-09-03 16:01:03 +01:00
perf
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phy phy: berlin-sata: Fix module autoload for OF platform driver 2015-09-25 17:01:14 +05:30
pinctrl pinctrl: uniphier: fix input enable settings for PH1-sLD8 2015-10-02 04:06:26 -07:00
platform platform-drivers-x86 for 4.3-2 2015-09-17 21:41:02 -07:00
pnp cleanup IORESOURCE_CACHEABLE vs ioremap() 2015-08-10 23:07:06 -04:00
power power supply and reset fixes for the v4.3 series 2015-09-17 12:25:42 -07:00
powercap powercap / RAPL: disable the 2nd power limit properly 2015-08-29 01:46:40 +02:00
pps
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ps3
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ptp
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pwm pwm: Changes for v4.3-rc1 2015-09-09 10:55:32 -07:00
rapidio
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ras x86/ras: Move AMD MCE injector to arch/x86/ras/ 2015-08-13 10:12:54 +02:00
regulator Merge remote-tracking branch 'regulator/fix/axp20x' into regulator-linus 2015-10-06 12:00:42 +01:00
remoteproc
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reset reset: ath79: Fix missing spin_lock_init 2015-09-01 14:48:40 +02:00
rpmsg
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rtc rtc: abx80x: fix RTC write bit 2015-09-05 19:37:31 +02:00
s390 s390/qdio: fix WARN_ON_ONCE condition 2015-10-07 04:52:06 -07:00
sbus
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scsi Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-10-20 06:08:27 -07:00
sfi
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sh SH Drivers Updates for v4.3 2015-09-21 12:02:27 -07:00
sn
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soc genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
spi Merge remote-tracking branches 'spi/fix/davinci' and 'spi/fix/sh-msiof' into spi-linus 2015-10-07 11:43:39 +01:00
spmi genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
ssb ssb: add Kconfig entry for compiling SoC related code 2015-10-28 21:05:21 +02:00
staging mm, fs: obey gfp_mapping for add_to_page_cache() 2015-10-16 11:42:28 -07:00
target iscsi-target: Avoid OFMarker + IFMarker negotiation 2015-09-24 23:24:46 -07:00
tc
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thermal thermal: avoid division by zero in power allocator 2015-10-01 21:42:35 -04:00
thunderbolt thunderbolt: Allow loading of module on recent Apple MacBooks with thunderbolt 2 controller 2015-09-20 15:20:11 -07:00
tty Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-10-20 06:08:27 -07:00
uio uio: UIO_PRUSS should depend on HAS_DMA 2015-08-05 13:25:59 -07:00
usb usb: Add device quirk for Logitech PTZ cameras 2015-10-04 11:01:13 +01:00
uwb
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vfio
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vhost virtio: fixes on top of 4.3-rc1 2015-09-18 09:28:20 -07:00
video video: of: fix memory leak 2015-10-07 14:13:59 +03:00
virt
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virtio virtio_balloon: do not change memory amount visible via /proc/meminfo 2015-09-08 13:32:11 +03:00
vlynq
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vme
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w1 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2015-09-01 18:46:42 -07:00
watchdog watchdog: iTCO: Fix dependencies on I2C 2015-09-28 10:56:10 +02:00
xen Merge branch 'akpm' (patches from Andrew) 2015-09-10 18:19:42 -07:00
zorro
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Kconfig Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm 2015-09-03 16:27:01 -07:00
Makefile This is the bulk of pin control changes for the v4.3 development 2015-09-04 10:22:09 -07:00