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From: Ben Hutchings <ben@decadent.org.uk>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: torvalds@linux-foundation.org, akpm@linux-foundation.org,
	alan@lxorguk.ukuu.org.uk, Stanislaw Gruszka <sgruszka@redhat.com>,
	Larry Finger <Larry.Finger@lwfinger.net>,
	Hin-Tak Leung <htl10@users.sourceforge.net>,
	"John W. Linville" <linville@tuxdriver.com>
Subject: [ 005/108] rtl8187: ->brightness_set can not sleep
Date: Mon, 23 Jul 2012 02:06:56 +0100	[thread overview]
Message-ID: <20120723010652.299525359@decadent.org.uk> (raw)
In-Reply-To: <20120723010651.408577075@decadent.org.uk>

3.2-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Stanislaw Gruszka <sgruszka@redhat.com>

commit 0fde0a8cfd0ede7f310d6a681c8e5a7cb3e32406 upstream.

Fix:

BUG: sleeping function called from invalid context at kernel/workqueue.c:2547
in_atomic(): 1, irqs_disabled(): 0, pid: 629, name: wpa_supplicant
2 locks held by wpa_supplicant/629:
 #0:  (rtnl_mutex){+.+.+.}, at: [<c08b2b84>] rtnl_lock+0x14/0x20
 #1:  (&trigger->leddev_list_lock){.+.?..}, at: [<c0867f41>] led_trigger_event+0x21/0x80
Pid: 629, comm: wpa_supplicant Not tainted 3.3.0-0.rc3.git5.1.fc17.i686
Call Trace:
 [<c046a9f6>] __might_sleep+0x126/0x1d0
 [<c0457d6c>] wait_on_work+0x2c/0x1d0
 [<c045a09a>] __cancel_work_timer+0x6a/0x120
 [<c045a160>] cancel_delayed_work_sync+0x10/0x20
 [<f7dd3c22>] rtl8187_led_brightness_set+0x82/0xf0 [rtl8187]
 [<c0867f7c>] led_trigger_event+0x5c/0x80
 [<f7ff5e6d>] ieee80211_led_radio+0x1d/0x40 [mac80211]
 [<f7ff3583>] ieee80211_stop_device+0x13/0x230 [mac80211]

Removing _sync is ok, because if led_on work is currently running
it will be finished before led_off work start to perform, since
they are always queued on the same mac80211 local->workqueue.

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=795176

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Acked-by: Hin-Tak Leung <htl10@users.sourceforge.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
 drivers/net/wireless/rtl818x/rtl8187/leds.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/rtl818x/rtl8187/leds.c b/drivers/net/wireless/rtl818x/rtl8187/leds.c
index 2e0de2f..c2d5b49 100644
--- a/drivers/net/wireless/rtl818x/rtl8187/leds.c
+++ b/drivers/net/wireless/rtl818x/rtl8187/leds.c
@@ -117,7 +117,7 @@ static void rtl8187_led_brightness_set(struct led_classdev *led_dev,
 			radio_on = true;
 		} else if (radio_on) {
 			radio_on = false;
-			cancel_delayed_work_sync(&priv->led_on);
+			cancel_delayed_work(&priv->led_on);
 			ieee80211_queue_delayed_work(hw, &priv->led_off, 0);
 		}
 	} else if (radio_on) {



  parent reply	other threads:[~2012-07-23  2:08 UTC|newest]

Thread overview: 116+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-23  1:06 [ 000/108] 3.2.24-stable review Ben Hutchings
2012-07-23  1:06 ` [ 001/108] samsung-laptop: make the dmi check less strict Ben Hutchings
2012-07-23  1:06 ` [ 002/108] raid5: delayed stripe fix Ben Hutchings
2012-07-23  1:06 ` [ 003/108] tcp: drop SYN+FIN messages Ben Hutchings
2012-07-23  1:06 ` [ 004/108] tg3: Apply short DMA frag workaround to 5906 Ben Hutchings
2012-07-23  1:06 ` Ben Hutchings [this message]
2012-07-23  1:06 ` [ 006/108] net/wireless: ipw2x00: add supported cipher suites to wiphy initialization Ben Hutchings
2012-07-23  1:06 ` [ 007/108] drm/i915: do not enable RC6p on Sandy Bridge Ben Hutchings
2012-07-23  1:06 ` [ 008/108] drm/i915: fix operator precedence when enabling RC6p Ben Hutchings
2012-07-23  1:07 ` [ 009/108] kbuild: do not check for ancient modutils tools Ben Hutchings
2012-07-23  1:07 ` [ 010/108] brcmsmac: "INTERMEDIATE but not AMPDU" only when tracing Ben Hutchings
2012-07-23  1:07 ` [ 011/108] NFSv4: Rate limit the state manager for lock reclaim warning messages Ben Hutchings
2012-07-23  1:07 ` [ 012/108] ext4: Report max_batch_time option correctly Ben Hutchings
2012-07-23  1:07 ` [ 013/108] hugepages: fix use after free bug in "quota" handling Ben Hutchings
2012-07-23  1:07 ` [ 014/108] NFSv4: Reduce the footprint of the idmapper Ben Hutchings
2012-07-23  1:07 ` [ 015/108] NFSv4: Further reduce " Ben Hutchings
2012-07-23  1:07 ` [ 016/108] macvtap: zerocopy: fix offset calculation when building skb Ben Hutchings
2012-07-23  1:07 ` [ 017/108] macvtap: zerocopy: fix truesize underestimation Ben Hutchings
2012-07-23  1:07 ` [ 018/108] macvtap: zerocopy: put page when fail to get all requested user pages Ben Hutchings
2012-07-23  1:07 ` [ 019/108] macvtap: zerocopy: set SKBTX_DEV_ZEROCOPY only when skb is built successfully Ben Hutchings
2012-07-23  1:07 ` [ 020/108] macvtap: zerocopy: validate vectors before building skb Ben Hutchings
2012-07-23  1:07 ` [ 021/108] KVM: Fix buffer overflow in kvm_set_irq() Ben Hutchings
2012-07-23  1:07 ` [ 022/108] scsi: Silence unnecessary warnings about ioctl to partition Ben Hutchings
2012-07-23  7:31   ` Paolo Bonzini
2012-07-23  1:07 ` [ 023/108] epoll: clear the tfile_check_list on -ELOOP Ben Hutchings
2012-07-23  1:07 ` [ 024/108] iommu/amd: Fix missing iommu_shutdown initialization in passthrough mode Ben Hutchings
2012-07-23  1:07 ` [ 025/108] iommu/amd: Initialize dma_ops for hotplug and sriov devices Ben Hutchings
2012-07-23  1:07 ` [ 026/108] usb: Add support for root hub port status CAS Ben Hutchings
2012-07-23  1:07 ` [ 027/108] gpiolib: wm8994: Pay attention to the value set when enabling as output Ben Hutchings
2012-07-23  1:07 ` [ 028/108] sched/nohz: Rewrite and fix load-avg computation -- again Ben Hutchings
2012-07-24 14:06   ` Ben Hutchings
2012-07-26 21:25     ` Peter Zijlstra
2012-07-26 22:01       ` Ben Hutchings
2012-07-26 22:02         ` Peter Zijlstra
2012-07-23  1:07 ` [ 029/108] USB: option: add ZTE MF60 Ben Hutchings
2012-07-23  1:07 ` [ 030/108] USB: option: Add MEDIATEK product ids Ben Hutchings
2012-07-23  1:07 ` [ 031/108] USB: cdc-wdm: fix lockup on error in wdm_read Ben Hutchings
2012-07-23  1:07 ` [ 032/108] mtd: nandsim: dont open code a do_div helper Ben Hutchings
2012-07-23  1:07 ` [ 033/108] [media] dvb-core: Release semaphore on error path dvb_register_device() Ben Hutchings
2012-07-23  1:07 ` [ 034/108] hwspinlock/core: use global ID to register hwspinlocks on multiple devices Ben Hutchings
2012-07-23  1:07 ` [ 035/108] [SCSI] libsas: fix taskfile corruption in sas_ata_qc_fill_rtf Ben Hutchings
2012-07-23  1:07 ` [ 036/108] md/raid1: fix use-after-free bug in RAID1 data-check code Ben Hutchings
2012-07-23  1:07 ` [ 037/108] PCI: EHCI: fix crash during suspend on ASUS computers Ben Hutchings
2012-07-23  1:07 ` [ 038/108] memory hotplug: fix invalid memory access caused by stale kswapd pointer Ben Hutchings
2012-07-23  1:07 ` [ 039/108] ocfs2: fix NULL pointer dereference in __ocfs2_change_file_space() Ben Hutchings
2012-07-23  1:07 ` [ 040/108] mm, thp: abort compaction if migration page cannot be charged to memcg Ben Hutchings
2012-07-23  1:07 ` [ 041/108] drivers/rtc/rtc-mxc.c: fix irq enabled interrupts warning Ben Hutchings
2012-07-23  1:07 ` [ 042/108] fs: ramfs: file-nommu: add SetPageUptodate() Ben Hutchings
2012-07-23  1:07 ` [ 043/108] cpufreq / ACPI: Fix not loading acpi-cpufreq driver regression Ben Hutchings
2012-07-23  1:07 ` [ 044/108] hwmon: (it87) Preserve configuration register bits on init Ben Hutchings
2012-07-23  1:07 ` [ 045/108] ARM: SAMSUNG: fix race in s3c_adc_start for ADC Ben Hutchings
2012-07-23  1:07 ` [ 046/108] block: fix infinite loop in __getblk_slow Ben Hutchings
2012-07-23  1:07 ` [ 047/108] Remove easily user-triggerable BUG from generic_setlease Ben Hutchings
2012-07-23  1:07 ` [ 048/108] NFC: Export nfc.h to userland Ben Hutchings
2012-07-23  1:07 ` [ 049/108] PM / Hibernate: Hibernate/thaw fixes/improvements Ben Hutchings
2012-07-23  1:07 ` [ 050/108] cfg80211: check iface combinations only when iface is running Ben Hutchings
2012-07-23  1:07 ` [ 051/108] intel_ips: blacklist HP ProBook laptops Ben Hutchings
2012-07-23  1:07 ` [ 052/108] atl1c: fix issue of transmit queue 0 timed out Ben Hutchings
2012-07-23  1:07 ` [ 053/108] rt2x00usb: fix indexes ordering on RX queue kick Ben Hutchings
2012-07-23  1:07 ` [ 054/108] iwlegacy: always monitor for stuck queues Ben Hutchings
2012-07-23  1:07 ` [ 055/108] iwlegacy: dont mess up the SCD when removing a key Ben Hutchings
2012-07-23  1:07 ` [ 056/108] e1000e: Correct link check logic for 82571 serdes Ben Hutchings
2012-07-23  1:07 ` [ 057/108] tcm_fc: Fix crash seen with aborts and large reads Ben Hutchings
2012-07-23  1:07 ` [ 058/108] fifo: Do not restart open() if it already found a partner Ben Hutchings
2012-07-23  1:07 ` [ 059/108] target: Clean up returning errors in PR handling code Ben Hutchings
2012-07-23  1:07 ` [ 060/108] target: Fix range calculation in WRITE SAME emulation when num blocks == 0 Ben Hutchings
2012-07-23  1:07 ` [ 061/108] cifs: on CONFIG_HIGHMEM machines, limit the rsize/wsize to the kmap space Ben Hutchings
2012-07-23  1:07 ` [ 062/108] cifs: always update the inode cache with the results from a FIND_* Ben Hutchings
2012-07-23  1:07 ` [ 063/108] mm: fix lost kswapd wakeup in kswapd_stop() Ben Hutchings
2012-07-23  1:07 ` [ 064/108] md: avoid crash when stopping md array races with closing other open fds Ben Hutchings
2012-07-23  1:07 ` [ 065/108] md/raid1: close some possible races on write errors during resync Ben Hutchings
2012-07-23  1:07 ` [ 066/108] MIPS: Properly align the .data..init_task section Ben Hutchings
2012-07-23  1:07 ` [ 067/108] UBIFS: fix a bug in empty space fix-up Ben Hutchings
2012-07-23  1:07 ` [ 068/108] ore: Fix NFS crash by supporting any unaligned RAID IO Ben Hutchings
2012-07-23  1:08 ` [ 069/108] ore: Remove support of partial IO request (NFS crash) Ben Hutchings
2012-07-23  1:08 ` [ 070/108] pnfs-obj: dont leak objio_state if ore_write/read fails Ben Hutchings
2012-07-23  1:08 ` [ 071/108] pnfs-obj: Fix __r4w_get_page when offset is beyond i_size Ben Hutchings
2012-07-23  1:08 ` [ 072/108] dm raid1: fix crash with mirror recovery and discard Ben Hutchings
2012-07-23  1:08 ` [ 073/108] dm raid1: set discard_zeroes_data_unsupported Ben Hutchings
2012-07-23  1:08 ` [ 074/108] ntp: Fix leap-second hrtimer livelock Ben Hutchings
2012-07-23  1:08 ` [ 075/108] ntp: Correct TAI offset during leap second Ben Hutchings
2012-07-23  1:08 ` [ 076/108] timekeeping: Fix CLOCK_MONOTONIC inconsistency during leapsecond Ben Hutchings
2012-07-23  1:08 ` [ 077/108] time: Move common updates to a function Ben Hutchings
2012-07-23  1:08 ` [ 078/108] hrtimer: Provide clock_was_set_delayed() Ben Hutchings
2012-07-23  1:08 ` [ 079/108] timekeeping: Fix leapsecond triggered load spike issue Ben Hutchings
2012-07-23  1:08 ` [ 080/108] timekeeping: Maintain ktime_t based offsets for hrtimers Ben Hutchings
2012-07-23  1:08 ` [ 081/108] hrtimers: Move lock held region in hrtimer_interrupt() Ben Hutchings
2012-07-23  1:08 ` [ 082/108] timekeeping: Provide hrtimer update function Ben Hutchings
2012-07-23  1:08 ` [ 083/108] hrtimer: Update hrtimer base offsets each hrtimer_interrupt Ben Hutchings
2012-07-23  1:08 ` [ 084/108] timekeeping: Add missing update call in timekeeping_resume() Ben Hutchings
2012-07-23  1:08 ` [ 085/108] powerpc: Fix wrong divisor in usecs_to_cputime Ben Hutchings
2012-07-23  1:08 ` [ 086/108] vhost: dont forget to schedule() Ben Hutchings
2012-07-23  1:08 ` [ 087/108] r8169: call netif_napi_del at errpaths and at driver unload Ben Hutchings
2012-07-23  1:08 ` [ 088/108] bnx2x: fix checksum validation Ben Hutchings
2012-07-23  1:08 ` [ 089/108] bnx2x: fix panic when TX ring is full Ben Hutchings
2012-07-23  1:08 ` [ 090/108] net: remove skb_orphan_try() Ben Hutchings
2012-07-23  1:08 ` [ 091/108] ACPI: Make acpi_skip_timer_override cover all source_irq==0 cases Ben Hutchings
2012-07-23  1:08 ` [ 092/108] ACPI: Remove one board specific WARN when ignoring timer overriding Ben Hutchings
2012-07-23  1:08 ` [ 093/108] ACPI: Add a quirk for "AMILO PRO V2030" to ignore the " Ben Hutchings
2012-07-23  1:08 ` [ 094/108] ACPI, x86: fix Dell M6600 ACPI reboot regression via DMI Ben Hutchings
2012-07-23  1:08 ` [ 095/108] ACPI sysfs.c strlen fix Ben Hutchings
2012-07-23  1:08 ` [ 096/108] eCryptfs: Gracefully refuse miscdev file ops on inherited/passed files Ben Hutchings
2012-07-23  1:08 ` [ 097/108] eCryptfs: Fix lockdep warning in miscdev operations Ben Hutchings
2012-07-23  1:08 ` [ 098/108] eCryptfs: Properly check for O_RDONLY flag before doing privileged open Ben Hutchings
2012-07-23  1:08 ` [ 099/108] ACPI / PM: Make acpi_pm_device_sleep_state() follow the specification Ben Hutchings
2012-07-23  1:08 ` [ 100/108] ipheth: add support for iPad Ben Hutchings
2012-07-23  1:08 ` [ 101/108] stmmac: Fix for nfs hang on multiple reboot Ben Hutchings
2012-07-23  1:08 ` [ 102/108] bonding: debugfs and network namespaces are incompatible Ben Hutchings
2012-07-23  1:08 ` [ 103/108] bonding: Manage /proc/net/bonding/ entries from the netdev events Ben Hutchings
2012-07-23  1:08 ` [ 104/108] Input: bcm5974 - Add support for 2012 MacBook Pro Retina Ben Hutchings
2012-07-23  1:08 ` [ 105/108] Input: xpad - handle all variations of Mad Catz Beat Pad Ben Hutchings
2012-07-23  1:08 ` [ 106/108] Input: xpad - add signature for Razer Onza Tournament Edition Ben Hutchings
2012-07-23  1:08 ` [ 107/108] Input: xpad - add Andamiro Pump It Up pad Ben Hutchings
2012-07-23  1:08 ` [ 108/108] HID: add support for 2012 MacBook Pro Retina Ben Hutchings
2012-07-23  1:51 ` [ 000/108] 3.2.24-stable review Ben Hutchings
     [not found] ` <CAD9gYJKwrcovmGcDJoCMAzQF=zfT2jnk9ghctejWAX1R5ifB=w@mail.gmail.com>
2012-07-30  1:37   ` Ben Hutchings

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