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linux/drivers/usb/host
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Gavin Shan ffe5adcb76 drivers/usb: Delete XHCI command timer if necessary 
When xhci_mem_cleanup() is called, it's possible that the command
timer isn't initialized and scheduled. For those cases, to delete
the command timer causes soft-lockup as below stack dump shows.

The patch avoids deleting the command timer if it's not scheduled
with the help of timer_pending().

NMI watchdog: BUG: soft lockup - CPU#40 stuck for 23s! [kworker/40:1:8140]
      :
NIP [c000000000150b30] lock_timer_base.isra.34+0x90/0xa0
LR [c000000000150c24] try_to_del_timer_sync+0x34/0xa0
Call Trace:
[c000000f67c975e0] [c0000000015b84f8] mon_ops+0x0/0x8 (unreliable)
[c000000f67c97620] [c000000000150c24] try_to_del_timer_sync+0x34/0xa0
[c000000f67c97660] [c000000000150cf0] del_timer_sync+0x60/0x80
[c000000f67c97690] [c00000000070ac0c] xhci_mem_cleanup+0x5c/0x5e0
[c000000f67c97740] [c00000000070c2e8] xhci_mem_init+0x1158/0x13b0
[c000000f67c97860] [c000000000700978] xhci_init+0x88/0x110
[c000000f67c978e0] [c000000000701644] xhci_gen_setup+0x2b4/0x590
[c000000f67c97970] [c0000000006d4410] xhci_pci_setup+0x40/0x190
[c000000f67c979f0] [c0000000006b1af8] usb_add_hcd+0x418/0xba0
[c000000f67c97ab0] [c0000000006cb15c] usb_hcd_pci_probe+0x1dc/0x5c0
[c000000f67c97b50] [c0000000006d3ba4] xhci_pci_probe+0x64/0x1f0
[c000000f67c97ba0] [c0000000004fe9ac] local_pci_probe+0x6c/0x130
[c000000f67c97c30] [c0000000000e5ce8] work_for_cpu_fn+0x38/0x60
[c000000f67c97c60] [c0000000000eacb8] process_one_work+0x198/0x470
[c000000f67c97cf0] [c0000000000eb6ac] worker_thread+0x37c/0x5a0
[c000000f67c97d80] [c0000000000f2730] kthread+0x110/0x130
[c000000f67c97e30] [c000000000009660] ret_from_kernel_thread+0x5c/0x7c

Cc: <stable@vger.kernel.org>
Reported-by: Priya M. A <priyama2@in.ibm.com>
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-03 14:41:48 -07:00
..
whci USB: whci-hcd: Delete an unnecessary check before the function call "usb_put_hcd" 2015-03-18 16:56:40 +01:00
bcma-hcd.c treewide: Remove unnecessary BCMA_CORETABLE_END macro 2015-02-11 14:38:28 -08:00
ehci-atmel.c USB: ehci-atmel: rework clk handling 2015-03-18 13:28:35 +01:00
ehci-dbg.c USB: ehci-dbg.c: move assignment out of if () block 2015-05-10 16:01:10 +02:00
ehci-exynos.c Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
ehci-fsl.c drivers:usb:fsl:Make fsl ehci drv an independent driver module 2015-05-24 09:29:36 -07:00
ehci-fsl.h
ehci-grlib.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
ehci-hcd.c drivers:usb:fsl: Fix compilation error for fsl ehci drv 2015-05-31 16:14:07 +09:00
ehci-hub.c drivers:usb:fsl: Fix compilation error for fsl ehci drv 2015-05-31 16:14:07 +09:00
ehci-mem.c USB: EHCI: don't allocate hardware periodic table atomically by default 2014-07-09 16:16:07 -07:00
ehci-msm.c Revert "usb: host: ehci-msm: Use devm_ioremap_resource instead of devm_ioremap" 2015-04-28 12:51:30 +02:00
ehci-mv.c host: ehci-mv: remove duplicate check on resource 2014-11-07 09:01:50 -08:00
ehci-mxc.c host: ehci-mxc: remove duplicate check on resource 2014-11-07 09:01:50 -08:00
ehci-omap.c usb: hcd: move controller wakeup setting initialization to individual driver 2013-12-08 18:06:46 -08:00
ehci-orion.c usb: ehci-orion: add more constants for register values 2015-03-26 10:50:52 +01:00
ehci-pci.c ehci-pci: disable for Intel MID platforms (update) 2015-02-03 15:28:31 -08:00
ehci-platform.c phy: for 4.2 merge window 2015-06-03 14:13:41 +09:00
ehci-pmcmsp.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
ehci-ppc-of.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
ehci-ps3.c usb: hcd: move controller wakeup setting initialization to individual driver 2013-12-08 18:06:46 -08:00
ehci-q.c usb: kill DEBUG compile option 2013-12-03 10:34:33 -08:00
ehci-sched.c USB: EHCI: adjust error return code 2015-01-09 09:58:49 -08:00
ehci-sead3.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
ehci-sh.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
ehci-spear.c host: ehci-spear: remove duplicate check on resource 2014-11-07 09:01:51 -08:00
ehci-st.c usb: host: ehci-st: Add EHCI support for ST STB devices 2014-09-23 21:35:50 -07:00
ehci-sysfs.c treewide: fix typo in printk and Kconfig 2014-11-20 14:56:11 +01:00
ehci-tegra.c USB: ehci-tegra: fix inefficient copy of unaligned buffers 2015-05-08 01:43:44 +02:00
ehci-tilegx.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
ehci-timer.c
ehci-w90x900.c Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
ehci-xilinx-of.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
ehci.h drivers:usb:fsl: Fix compilation error for fsl ehci drv 2015-05-31 16:14:07 +09:00
fhci-dbg.c drivers/usb/host/fhci-dbg.c: remove unnecessary null test before debugfs_remove 2014-07-09 16:13:03 -07:00
fhci-hcd.c usb: host: drop owner assignment from platform_drivers 2014-10-20 16:21:49 +02:00
fhci-hub.c fhci-hub: use USB_DT_HUB 2015-04-03 19:03:19 +02:00
fhci-mem.c
fhci-q.c
fhci-sched.c
fhci-tds.c
fhci.h
fotg210-hcd.c usb: generic resume timeout for v4.1 2015-04-10 13:45:27 +02:00
fotg210.h fotg210: Use ehci_dbg_port struct 2014-11-07 09:02:38 -08:00
fsl-mph-dr-of.c drivers:usb:fsl: Add support for USB controller version-2.5 2015-05-31 15:51:24 +09:00
fusbh200-hcd.c USB: fusbh200-hcd.c: move assignment out of if () block 2015-05-10 16:01:10 +02:00
fusbh200.h fusbh200: Use ehci_dbg_port struct 2014-11-07 09:02:38 -08:00
hwa-hc.c USB: HWA: fix a warning message 2014-11-03 15:26:15 -08:00
imx21-dbg.c usb: kill DEBUG compile option 2013-12-03 10:34:33 -08:00
imx21-hcd.c imx21-hcd: use USB_DT_HUB 2015-04-03 19:03:18 +02:00
imx21-hcd.h usb: kill DEBUG compile option 2013-12-03 10:34:33 -08:00
isp116x-hcd.c USB: isp116x-hcd.c: move assignment out of if () block 2015-05-10 16:01:11 +02:00
isp116x.h
isp1362-hcd.c isp1362-hcd: use USB_DT_HUB 2015-04-03 19:03:18 +02:00
isp1362.h
Kconfig Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-06-27 12:44:34 -07:00
Makefile drivers:usb:fsl:Make fsl ehci drv an independent driver module 2015-05-24 09:29:36 -07:00
max3421-hcd.c max3421-hcd: use USB_DT_HUB 2015-04-03 19:03:18 +02:00
ohci-at91.c USB: host: ohci-at91: remove useless uclk clock 2015-03-26 10:54:01 +01:00
ohci-da8xx.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
ohci-dbg.c USB: ohci-dbg.c: move assignment out of if () block 2015-05-10 16:01:11 +02:00
ohci-exynos.c Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
ohci-hcd.c USB: ohci-hcd.c: move assignment out of if () block 2015-05-10 16:01:11 +02:00
ohci-hub.c ohci-hub: use USB_DT_HUB 2015-04-03 19:03:17 +02:00
ohci-jz4740.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
ohci-mem.c USB: OHCI: add I/O watchdog for orphan TDs 2014-07-18 16:34:07 -07:00
ohci-nxp.c usb: host: drop owner assignment from platform_drivers 2014-10-20 16:21:49 +02:00
ohci-omap.c Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
ohci-omap3.c usb: hcd: move controller wakeup setting initialization to individual driver 2013-12-08 18:06:46 -08:00
ohci-pci.c USB: OHCI: fix problem with global suspend on ATI controllers 2014-05-03 17:58:46 -04:00
ohci-platform.c usb: ohci-platform: Use devm_of_phy_get_by_index 2015-05-11 21:42:25 +05:30
ohci-ppc-of.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
ohci-ps3.c usb: hcd: move controller wakeup setting initialization to individual driver 2013-12-08 18:06:46 -08:00
ohci-pxa27x.c Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
ohci-q.c USB: OHCI: Fix race between ED unlink and URB submission 2015-07-22 14:46:50 -07:00
ohci-s3c2410.c ohci-s3c2410: use HUB_CHAR_* 2015-01-25 21:01:13 +08:00
ohci-sa1111.c usb: hcd: move controller wakeup setting initialization to individual driver 2013-12-08 18:06:46 -08:00
ohci-sm501.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
ohci-spear.c Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
ohci-st.c usb: host: ohci-st: Add OHCI driver support for ST STB devices 2014-09-23 21:35:50 -07:00
ohci-tilegx.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
ohci-tmio.c USB: OHCI: fix bad #define in ohci-tmio.c 2015-07-22 14:49:42 -07:00
ohci.h USB: OHCI: Eliminate platform-specific test in ohci.h 2014-11-03 15:38:17 -08:00
oxu210hp-hcd.c usb: generic resume timeout for v4.1 2015-04-10 13:45:27 +02:00
oxu210hp.h
pci-quirks.c usb: host: pci_quirks: joing string literals 2015-01-31 09:05:06 -08:00
pci-quirks.h usb: pci_quirks: fix sparse 'symbol not declared' warning 2014-05-27 16:25:32 -07:00
r8a66597-hcd.c usb: generic resume timeout for v4.1 2015-04-10 13:45:27 +02:00
r8a66597.h
sl811_cs.c usb: delete non-required instances of include <linux/init.h> 2014-01-08 15:01:39 -08:00
sl811-hcd.c usb: generic resume timeout for v4.1 2015-04-10 13:45:27 +02:00
sl811.h
ssb-hcd.c USB: ssb: use devm_kzalloc 2015-06-08 14:26:22 -07:00
u132-hcd.c u132-hcd: use USB_DT_HUB 2015-04-03 19:03:16 +02:00
uhci-debug.c usb: kill DEBUG compile option 2013-12-03 10:34:33 -08:00
uhci-grlib.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
uhci-hcd.c USB: UHCI: don't allocate frame list atomically 2014-07-09 16:16:07 -07:00
uhci-hcd.h
uhci-hub.c usb: generic resume timeout for v4.1 2015-04-10 13:45:27 +02:00
uhci-pci.c USB: remove DEFINE_PCI_DEVICE_TABLE macro 2013-12-04 16:58:47 -08:00
uhci-platform.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
uhci-q.c
xhci-dbg.c xhci: clean up work to remove unused parameters for functions in xhci-mem.c 2015-01-09 10:05:47 -08:00
xhci-ext-caps.h
xhci-hub.c xhci: do not report PLC when link is in internal resume state 2015-07-22 14:19:37 -07:00
xhci-mem.c drivers/usb: Delete XHCI command timer if necessary 2015-08-03 14:41:48 -07:00
xhci-mvebu.c usb: host: xhci-plat: add support for the Armada 375/38x XHCI controllers 2014-05-27 15:40:40 -07:00
xhci-mvebu.h usb: host: xhci-plat: add support for the Armada 375/38x XHCI controllers 2014-05-27 15:40:40 -07:00
xhci-pci.c xhci: Workaround to get D3 working in Intel xHCI 2015-07-22 14:19:36 -07:00
xhci-plat.c usb: xhci: Fix suspend/resume when used with OTG core 2015-05-31 15:45:31 +09:00
xhci-rcar.c usb: host: xhci-plat: add support for the R-Car H2 and M2 xHCI controllers 2014-07-09 15:49:10 -07:00
xhci-rcar.h usb: host: xhci-plat: add support for the R-Car H2 and M2 xHCI controllers 2014-07-09 15:49:10 -07:00
xhci-ring.c xhci: fix off by one error in TRB DMA address boundary check 2015-08-03 14:41:48 -07:00
xhci-trace.c xhci: Export symbols used by host-controller drivers 2014-10-03 14:44:45 -07:00
xhci-trace.h tracing: Add TRACE_SYSTEM_VAR to xhci-hcd 2015-04-07 12:31:55 -04:00
xhci.c xhci: Calculate old endpoints correctly on device reset 2015-07-22 14:19:36 -07:00
xhci.h xhci: prevent bus_suspend if SS port resuming in phase 1 2015-07-22 14:19:37 -07:00