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4dea70778c
linux/drivers/usb/host
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Lu Baolu 4dea70778c usb: xhci: hold lock over xhci_abort_cmd_ring() 
In command timer function, xhci_handle_command_timeout(), xhci->lock
is unlocked before call into xhci_abort_cmd_ring(). This might cause
race between the timer function and the event handler.

The xhci_abort_cmd_ring() function sets the CMD_RING_ABORT bit in the
command register and polling it until the setting takes effect. A stop
command ring event might be handled between writing the abort bit and
polling for it. The event handler will restart the command ring, which
causes the failure of polling, and we ever believed that we failed to
stop it.

As a bonus, this also fixes some issues of calling functions without
locking in xhci_handle_command_timeout().

Cc: <stable@vger.kernel.org> # 3.7+
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-03 17:37:32 +01:00
..
whci whci: Remove deprecated create_singlethread_workqueue 2016-08-15 16:25:58 +02:00
bcma-hcd.c USB: bcma: drop Northstar PHY 2.0 initialization code 2016-09-27 12:20:17 +02:00
ehci-atmel.c usb: ehci-atmel: use __maybe_unused to hide pm functions 2016-03-03 20:37:41 -08:00
ehci-dbg.c USB: EHCI: make all debugging depend on CONFIG_DYNAMIC_DEBUG 2016-04-29 15:31:30 -07:00
ehci-exynos.c usb/host/: const data must use __initconst not __initdata 2016-04-28 12:35:36 -07:00
ehci-fsl.c fsl/usb: Workarourd for USB erratum-A005697 2016-12-05 15:13:58 +01:00
ehci-fsl.h
ehci-grlib.c
ehci-hcd.c USB: host: ehci-sead3: Remove SEAD-3 EHCI code 2016-10-05 01:31:20 +02:00
ehci-hub.c fsl/usb: Workarourd for USB erratum-A005697 2016-12-05 15:13:58 +01:00
ehci-mem.c
ehci-msm.c usb: host: ehci-msm: Conditionally call ehci suspend/resume 2016-06-07 22:15:25 -07:00
ehci-mv.c
ehci-mxc.c
ehci-omap.c usb/host/: const data must use __initconst not __initdata 2016-04-28 12:35:36 -07:00
ehci-orion.c
ehci-pci.c USB: EHCI: merge all cases that disable the IO watchdog 2016-10-24 14:36:25 +02:00
ehci-platform.c usb: ehci-platform: increase EHCI_MAX_RSTS to 4 2016-10-24 14:29:08 +02:00
ehci-pmcmsp.c
ehci-ppc-of.c
ehci-ps3.c
ehci-q.c usb: host: ehci: remove unnecessary max_packet() macro 2016-11-03 10:38:24 +02:00
ehci-sched.c usb: host: ehci: remove unnecessary max_packet() macro 2016-11-03 10:38:24 +02:00
ehci-sh.c
ehci-spear.c usb/host/: const data must use __initconst not __initdata 2016-04-28 12:35:36 -07:00
ehci-st.c usb: host: ehci-st: Inform the reset framework that our reset line may be shared 2016-06-30 07:44:21 +01:00
ehci-sysfs.c
ehci-tegra.c usb: host: ehci-tegra: Avoid getting the same reset twice 2016-06-07 22:15:25 -07:00
ehci-tilegx.c
ehci-timer.c ktime: Cleanup ktime_set() usage 2016-12-25 17:21:22 +01:00
ehci-w90x900.c USB: EHCI: ehci-w90x900: remove unuseful functions 2016-11-29 17:36:43 +01:00
ehci-xilinx-of.c
ehci.h fsl/usb: Workarourd for USB erratum-A005697 2016-12-05 15:13:58 +01:00
fhci-dbg.c
fhci-hcd.c usb: host: fhci-hcd: don't print on ENOMEM 2016-08-30 19:17:37 +02:00
fhci-hub.c
fhci-mem.c
fhci-q.c
fhci-sched.c USB: FHCI: avoid redundant condition 2016-05-09 13:08:46 +02:00
fhci-tds.c
fhci.h
fotg210-hcd.c ktime: Cleanup ktime_set() usage 2016-12-25 17:21:22 +01:00
fotg210.h
fsl-mph-dr-of.c fsl/usb: Workarourd for USB erratum-A005697 2016-12-05 15:13:58 +01:00
hwa-hc.c
imx21-dbg.c
imx21-hcd.c
imx21-hcd.h
isp116x-hcd.c
isp116x.h
isp1362-hcd.c usb: Convert pr_warning to pr_warn 2016-11-03 10:38:36 +02:00
isp1362.h
Kconfig USB: OHCI: make ohci-da8xx a separate driver 2016-10-27 16:59:59 +02:00
Makefile USB: OHCI: make ohci-da8xx a separate driver 2016-10-27 16:59:59 +02:00
max3421-hcd.c usb: host: max3421-hcd: don't print on ENOMEM 2016-08-30 19:17:37 +02:00
ohci-at91.c USB: OHCI: at91: remove useless extern declaration 2016-12-08 17:50:09 +01:00
ohci-da8xx.c USB: ohci: da8xx: Resume the entire host controller 2016-11-29 17:31:36 +01:00
ohci-dbg.c
ohci-exynos.c
ohci-hcd.c Merge 4.9-rc3 into usb-next 2016-10-30 06:40:39 -04:00
ohci-hub.c
ohci-mem.c USB: OHCI: use dma_pool_zalloc 2016-11-21 17:33:40 +01:00
ohci-nxp.c USB: OHCI: nxp: fix code warnings 2016-12-08 17:50:09 +01:00
ohci-omap3.c
ohci-omap.c USB: OHCI: omap: remove useless extern declaration 2016-12-05 16:32:51 +01:00
ohci-pci.c
ohci-platform.c ohci-platform: Add support for controllers with multiple reset lines 2016-06-07 22:21:41 -07:00
ohci-ppc-of.c
ohci-ps3.c
ohci-pxa27x.c USB: OHCI: ohci-pxa27x: remove useless functions 2016-12-05 16:32:51 +01:00
ohci-q.c USB: OHCI: Don't mark EDs as ED_OPER if scheduling fails 2016-06-07 22:15:25 -07:00
ohci-s3c2410.c USB: OHCI: ohci-s3c2410: remove useless functions 2016-12-05 16:32:51 +01:00
ohci-sa1111.c usb: ohci-sa1111: remove mach/hardware.h include 2016-08-30 19:24:59 +02:00
ohci-sm501.c
ohci-spear.c
ohci-st.c usb: host: ohci-st: Inform the reset framework that our reset line may be shared 2016-06-30 07:44:20 +01:00
ohci-tilegx.c
ohci-tmio.c
ohci.h usb: host: unhide suspend/resume declarations 2016-03-03 20:37:41 -08:00
oxu210hp-hcd.c
oxu210hp.h
pci-quirks.c drivers/usb: Skip auto handoff for TI and RENESAS usb controllers 2016-11-07 10:12:22 +01:00
pci-quirks.h
r8a66597-hcd.c usb: r8a66597: add locking to r8a66597_check_detect_child 2016-02-06 21:55:57 -08:00
r8a66597.h
sl811_cs.c
sl811-hcd.c
sl811.h
ssb-hcd.c
u132-hcd.c
uhci-debug.c
uhci-grlib.c
uhci-hcd.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
uhci-hcd.h
uhci-hub.c
uhci-pci.c USB: UHCI: report non-PME wakeup signalling for Intel hardware 2016-11-11 16:32:35 -06:00
uhci-platform.c
uhci-q.c
xhci-dbg.c
xhci-ext-caps.h xhci: harden xhci_find_next_ext_cap against device removal 2016-02-04 17:00:10 -08:00
xhci-hub.c xhci: use default USB_RESUME_TIMEOUT when resuming ports. 2016-10-20 17:54:55 +02:00
xhci-mem.c xhci: free xhci virtual devices with leaf nodes first 2017-01-03 17:37:32 +01:00
xhci-mtk-sch.c usb: host: xhci: purge GET_MAX_PACKET() 2016-11-03 10:38:22 +02:00
xhci-mtk.c usb: return error code when platform_get_irq fails 2017-01-03 17:37:32 +01:00
xhci-mtk.h usb: xhci-mtk: make IPPC register optional 2016-10-27 17:02:41 +02:00
xhci-mvebu.c usb: host: xhci: plat: change type of mvebu init_quirk() 2016-04-26 16:08:02 -07:00
xhci-mvebu.h usb: host: xhci: plat: change type of mvebu init_quirk() 2016-04-26 16:08:02 -07:00
xhci-pci.c xhci: workaround for hosts missing CAS bit 2016-10-20 17:54:55 +02:00
xhci-plat.c usb: host: xhci: plat: add support for Renesas r8a7796 SoC 2016-11-14 10:18:22 +01:00
xhci-plat.h usb: host: xhci: plat: finally get rid of xhci_plat_type_is() 2016-04-26 16:08:02 -07:00
xhci-rcar.c usb: host: xhci: plat: add support for Renesas r8a7796 SoC 2016-11-14 10:18:22 +01:00
xhci-rcar.h usb: host: xhci: rcar: add a new firmware version for r8a7796 2016-11-14 10:18:22 +01:00
xhci-ring.c usb: xhci: hold lock over xhci_abort_cmd_ring() 2017-01-03 17:37:32 +01:00
xhci-tegra.c usb: host: xhci-tegra: Fix error return code in tegra_xusb_probe() 2016-09-13 17:24:24 +02:00
xhci-trace.c
xhci-trace.h
xhci.c usb: xhci: fix return value of xhci_setup_device() 2017-01-03 17:37:32 +01:00
xhci.h usb: patches for v4.10 merge window 2016-11-18 16:02:15 +01:00