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Mathias Nyman 96044694b8 xhci: fix oops when xhci resumes from hibernate with hw lpm capable devices 
Resuming from hibernate (S4) will restart and re-initialize xHC.
The device contexts are freed and will be re-allocated later during device reset.

Usb core will disable link pm in device resume before device reset, which will
try to change the max exit latency, accessing the device contexts before they are re-allocated.

There is no need to zero (disable) the max exit latency when disabling hw lpm
for a freshly re-initialized xHC. So check that device context exists before
doing anything. The max exit latency will be set again after device reset when usb core
enables the link pm.

Reported-by: Imre Deak <imre.deak@intel.com>
Tested-by: Imre Deak <imre.deak@intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2014-09-11 14:23:52 -07:00
..
whci usb: delete non-required instances of include <linux/init.h> 2014-01-08 15:01:39 -08:00
Kconfig usb: host: xhci-plat: add support for the R-Car H2 and M2 xHCI controllers 2014-07-09 15:49:10 -07:00
Makefile usb: host: xhci-plat: add support for the R-Car H2 and M2 xHCI controllers 2014-07-09 15:49:10 -07:00
bcma-hcd.c DMA-API: usb: bcma: replace dma_set_mask()+dma_set_coherent_mask() with new helper 2013-10-31 14:48:34 +00:00
ehci-atmel.c usb: hcd: move controller wakeup setting initialization to individual driver 2013-12-08 18:06:46 -08:00
ehci-dbg.c usb: Use dev_is_pci() to check whether it is pci device 2013-12-08 18:01:56 -08:00
ehci-exynos.c Revert "usb: ehci/ohci-exynos: Fix PHY getting sequence" 2014-08-27 15:23:53 -07:00
ehci-fsl.c fsl-usb: do not test for PHY_CLK_VALID bit on controller version 1.6 2014-05-03 18:04:28 -04:00
ehci-fsl.h powerpc/usb: fix bug of CPU hang when missing USB PHY clock 2012-09-05 16:52:08 -07:00
ehci-grlib.c USB: ehci-grlib: use dev_err() instead of printk() 2013-12-18 16:32:41 -08:00
ehci-hcd.c usb: ehci: fix deadlock when threadirqs option is used 2014-02-26 15:46:42 -08:00
ehci-hub.c usb: ehci: using wIndex + 1 for hub port 2014-08-25 13:11:27 -07:00
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 USB: ehci-msm: Make of_device_id array const 2014-07-09 16:13:03 -07:00
ehci-mv.c usb: host: ehci-mv: Use devm_ioremap_resource instead of devm_ioremap 2014-05-27 14:52:29 -07:00
ehci-mxc.c usb: hcd: move controller wakeup setting initialization to individual driver 2013-12-08 18:06:46 -08:00
ehci-octeon.c USB: ehci-octeon: Use devm_ioremap_resource() 2013-12-18 16:34:20 -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 optional PHY support 2014-05-27 15:33:12 -07:00
ehci-pci.c USB: ehci-pci: USB host controller support for Intel Quark X1000 2014-07-09 16:16:07 -07:00
ehci-platform.c usb: ehci-platform: add optional reset controller retrieval 2014-05-27 15:53:01 -07:00
ehci-pmcmsp.c MIPS: MSP71xx: Remove checks for two macros 2014-05-23 15:12:39 +02:00
ehci-ppc-of.c USB: ehci-ppc-of: use dev_err() instead of printk() 2013-12-18 16:32:41 -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: fix sparse errors 2013-10-19 14:08:04 -07:00
ehci-sead3.c usb: hcd: move controller wakeup setting initialization to individual driver 2013-12-08 18:06:46 -08:00
ehci-sh.c usb: hcd: move controller wakeup setting initialization to individual driver 2013-12-08 18:06:46 -08:00
ehci-spear.c USB: ehci-spear: Make of_device_id array const 2014-07-09 16:13:03 -07:00
ehci-sysfs.c USB: EHCI: use a bandwidth-allocation table 2013-10-11 16:45:43 -07:00
ehci-tegra.c USB: EHCI: tegra: Fix probe order issue leading to broken USB 2014-07-09 16:25:46 -07:00
ehci-tilegx.c tile: usb: Use irq_alloc/free_hwirq 2014-05-16 14:05:20 +02:00
ehci-timer.c USB: EHCI: improve interrupt qh unlink 2013-08-12 11:43:48 -07:00
ehci-w90x900.c USB: ehci-w90x900: Use devm_ioremap_resource() 2013-12-18 16:35:11 -08:00
ehci-xilinx-of.c USB: ehci-xilinx-of: use dev_err() instead of printk() 2013-12-18 16:32:41 -08:00
ehci.h USB: EHCI: Export the ehci_hub_control function 2014-04-24 13:05:32 -07:00
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: hcd: move controller wakeup setting initialization to individual driver 2013-12-08 18:06:46 -08:00
fhci-hub.c USB: FHCI: Reusing QUICC Engine USB Controller registers from immap_qe.h 2012-06-26 19:42:11 -07:00
fhci-mem.c
…
fhci-q.c
…
fhci-sched.c USB: FHCI: upgrade the isochronous API 2013-05-30 21:34:31 +09:00
fhci-tds.c USB: FHCI: Reusing QUICC Engine USB Controller registers from immap_qe.h 2012-06-26 19:42:11 -07:00
fhci.h USB: FHCI: upgrade the isochronous API 2013-05-30 21:34:31 +09:00
fotg210-hcd.c fotg210: Use managed interfaces for allocation of resources 2014-07-09 16:31:48 -07:00
fotg210.h fotg210: remove conditional compilation 2013-12-03 10:28:39 -08:00
fsl-mph-dr-of.c USB: fsl-mph-dr-of: adjust for OF based clock lookup 2014-01-12 18:53:05 +01:00
fusbh200-hcd.c usb: hcd: move controller wakeup setting initialization to individual driver 2013-12-08 18:06:46 -08:00
fusbh200.h fusb200h: always compile in debugfs support 2013-12-03 10:31:21 -08:00
hwa-hc.c usb: wusbcore: disable transfer notifications for Alereon HWAs 2014-03-07 12:52:04 -08:00
imx21-dbg.c usb: kill DEBUG compile option 2013-12-03 10:34:33 -08:00
imx21-hcd.c usb: hcd: move controller wakeup setting initialization to individual driver 2013-12-08 18:06:46 -08:00
imx21-hcd.h usb: kill DEBUG compile option 2013-12-03 10:34:33 -08:00
isp116x-hcd.c usb: delete non-required instances of include <linux/init.h> 2014-01-08 15:01:39 -08:00
isp116x.h USB: isp116x: remove dependency on CONFIG_USB_DEBUG 2013-07-23 16:35:17 -07:00
isp1362-hcd.c usb: delete non-required instances of include <linux/init.h> 2014-01-08 15:01:39 -08:00
isp1362.h USB: isp1362: move debug files from proc to debugfs 2013-07-24 14:43:05 -07:00
isp1760-hcd.c usb: hcd: move controller wakeup setting initialization to individual driver 2013-12-08 18:06:46 -08:00
isp1760-hcd.h
…
isp1760-if.c USB: host: use dev_get_platdata() 2013-07-31 17:53:50 -07:00
max3421-hcd.c usb: host: max3421-hcd: unconditionally use GFP_ATOMIC in max3421_urb_enqueue() 2014-07-09 16:06:50 -07:00
octeon2-common.c
…
ohci-at91.c USB: OHCI: Export the OHCI hub control and status_data functions 2014-04-24 13:05:32 -07:00
ohci-da8xx.c USB: ohci-da8xx: Use devm_*() functions 2013-12-18 16:35:11 -08:00
ohci-dbg.c USB: OHCI: fix bugs in debug routines 2014-07-17 17:05:07 -07:00
ohci-exynos.c Revert "usb: ehci/ohci-exynos: Fix PHY getting sequence" 2014-08-27 15:23:53 -07:00
ohci-hcd.c USB: OHCI: add check for stopped frame counter 2014-07-18 16:34:29 -07:00
ohci-hub.c USB: OHCI: add I/O watchdog for orphan TDs 2014-07-18 16:34:07 -07:00
ohci-jz4740.c USB: ohci-jz4740: FEAT_POWER is a port feature, not a hub feature 2014-04-16 13:59:41 -07:00
ohci-mem.c USB: OHCI: add I/O watchdog for orphan TDs 2014-07-18 16:34:07 -07:00
ohci-nxp.c USB: ohci-nxp: Use devm_clk_get() 2013-12-18 16:36:10 -08:00
ohci-octeon.c USB: ohci-octeon: Use devm_ioremap_resource() 2013-12-18 16:36:11 -08:00
ohci-omap.c USB: ohci-omap: use dev_err() instead of printk() 2013-12-18 16:32:41 -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: Enable optional use of reset controller 2014-05-27 15:53:00 -07:00
ohci-ppc-of.c USB: ohci-ppc-of: Use devm_ioremap_resource() 2013-12-18 16:36:10 -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 USB: ohci-pxa27x: Add support for external vbus regulators 2014-04-24 13:05:32 -07:00
ohci-q.c USB: OHCI: add I/O watchdog for orphan TDs 2014-07-18 16:34:07 -07:00
ohci-s3c2410.c USB: OHCI: Export the OHCI hub control and status_data functions 2014-04-24 13:05:32 -07:00
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: hcd: move controller wakeup setting initialization to individual driver 2013-12-08 18:06:46 -08:00
ohci-spear.c USB: ohci-spear: Make of_device_id array const 2014-07-09 16:13:03 -07:00
ohci-tilegx.c tile: usb: Use irq_alloc/free_hwirq 2014-05-16 14:05:20 +02:00
ohci-tmio.c usb: delete non-required instances of include <linux/init.h> 2014-01-08 15:01:39 -08:00
ohci.h USB: OHCI: add check for stopped frame counter 2014-07-18 16:34:29 -07:00
oxu210hp-hcd.c USB: oxu210hp-hcd.c: use devm_ functions 2014-07-09 16:11:11 -07:00
oxu210hp.h
…
pci-quirks.c USB: EHCI: avoid BIOS handover on the HASEE E200 2014-06-17 17:05:49 -07:00
pci-quirks.h usb: pci_quirks: fix sparse 'symbol not declared' warning 2014-05-27 16:25:32 -07:00
r8a66597-hcd.c ARM: driver updates for 3.14 2014-01-23 18:49:36 -08:00
r8a66597.h usb/host/r8a66597: remove conditional compilation of clk code 2012-07-30 17:25:12 -07:00
sl811-hcd.c usb: delete non-required instances of include <linux/init.h> 2014-01-08 15:01:39 -08:00
sl811.h USB: sl811: move debug files from proc to debugfs 2013-07-24 14:43:05 -07:00
sl811_cs.c usb: delete non-required instances of include <linux/init.h> 2014-01-08 15:01:39 -08:00
ssb-hcd.c DMA-API: usb: ssb-hcd: replace dma_set_mask()+dma_set_coherent_mask() with new helper 2013-10-31 14:48:36 +00:00
u132-hcd.c usb: hcd: move controller wakeup setting initialization to individual driver 2013-12-08 18:06:46 -08:00
uhci-debug.c usb: kill DEBUG compile option 2013-12-03 10:34:33 -08:00
uhci-grlib.c usb: host: uhci-grlib.c : use devm_ functions 2014-07-09 16:25:22 -07:00
uhci-hcd.c USB: UHCI: don't allocate frame list atomically 2014-07-09 16:16:07 -07:00
uhci-hcd.h USB: UHCI: remove unused definition 2013-01-24 13:42:09 -08:00
uhci-hub.c USB/host: Bugfix: Return length of copied buffer in uhci_hub_control() 2013-10-07 00:07:17 -07:00
uhci-pci.c USB: remove DEFINE_PCI_DEVICE_TABLE macro 2013-12-04 16:58:47 -08:00
uhci-platform.c uhci-platform: use devm_ioremap resource 2014-07-09 16:31:48 -07:00
uhci-q.c USB: UHCI: accept very late isochronous URBs 2013-09-25 17:05:34 -07:00
xhci-dbg.c Revert "xhci: replace xhci_read_64() with readq()" 2014-01-30 13:27:49 -08:00
xhci-ext-caps.h xhci: fix port BESL LPM capability checking 2013-08-27 08:54:42 -07:00
xhci-hub.c usb: host: xhci: fix compliance mode workaround 2014-09-08 14:30:42 -07:00
xhci-mem.c usb: xhci: Fix OOPS in xhci error handling code 2014-09-11 14:23:52 -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: Disable streams on Via XHCI with device-id 0x3432 2014-08-27 13:35:38 -07:00
xhci-plat.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.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: rework cycle bit checking for new dequeue pointers 2014-08-19 11:27:36 -05:00
xhci-trace.c xhci: add traces for debug messages in xhci_address_device() 2013-08-13 16:05:38 -07:00
xhci-trace.h xhci: fix sparse warning in xhci-trace.h 2013-12-02 12:59:45 -08:00
xhci.c xhci: fix oops when xhci resumes from hibernate with hw lpm capable devices 2014-09-11 14:23:52 -07:00
xhci.h xhci: Blacklist using streams on the Etron EJ168 controller 2014-08-01 15:49:34 -07:00