linux/drivers/usb/host
Oleksij Rempel d66eaf9f89 xhci: fix null pointer dereference on ring_doorbell_for_active_rings
in some cases where device is attched to xhci port and do not responding,
for example ath9k_htc with stalled firmware, kernel will
crash on ring_doorbell_for_active_rings.
This patch check if pointer exist before it is used.

This patch should be backported to kernels as old as 2.6.35, that
contain the commit e9df17eb14 "USB: xhci:
Correct assumptions about number of rings per endpoint"

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@vger.kernel.org
2013-07-25 08:10:09 -07:00
..
whci wusbhc: disable suspend and resume on the root hub. 2013-06-06 12:14:38 -07:00
bcma-hcd.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
ehci-atmel.c ehci-atmel.c: prepare clk before calling enable 2013-06-24 16:21:52 -07:00
ehci-dbg.c USB: EHCI: convert singly-linked lists to list_heads 2013-03-25 13:35:05 -07:00
ehci-fsl.c usb: fsl: add missing platform_driver owner 2013-05-16 17:48:28 -07:00
ehci-fsl.h
ehci-grlib.c USB: host: use platform_{get,set}_drvdata() 2013-05-30 21:32:54 +09:00
ehci-hcd.c USB: EHCI: make ehci-tegra a separate driver 2013-06-17 13:54:48 -07:00
ehci-hub.c USB: EHCI: Fix resume signalling on remote wakeup 2013-07-22 11:35:34 -07:00
ehci-mem.c
ehci-msm.c USB: EHCI: make ehci-msm a separate driver 2013-04-08 09:40:20 -07:00
ehci-mv.c USB: ehci-mv: remove unnecessary platform_set_drvdata() 2013-05-16 17:47:14 -07:00
ehci-mxc.c USB: ehci-mxc: remove unnecessary platform_set_drvdata() 2013-05-16 17:47:15 -07:00
ehci-octeon.c USB: ehci-octeon: remove unnecessary platform_set_drvdata() 2013-05-16 17:47:15 -07:00
ehci-omap.c USB: ehci-omap: Tweak PHY initialization sequence 2013-06-17 13:56:25 -07:00
ehci-orion.c Merge 3.10-rc3 into usb-next 2013-05-27 11:00:52 +09:00
ehci-pci.c USB: Fix initconst in ehci driver 2013-04-23 10:10:29 -07:00
ehci-platform.c ARM SoC specific changes 2013-07-02 13:43:38 -07:00
ehci-pmcmsp.c USB: EHCI: Remove double assignment of .start in ehci_msp_hc_driver 2013-06-17 13:56:25 -07:00
ehci-ppc-of.c USB: host: use platform_{get,set}_drvdata() 2013-05-30 21:32:54 +09:00
ehci-ps3.c usb: PS3 EHCI remove unneeded ehci_shutdown 2013-04-01 12:32:43 -07:00
ehci-q.c usb: ehci: mark unlink_empty_async_suspended() as __maybe_unused 2013-03-28 14:49:53 -07:00
ehci-s5p.c usb: ehci-s5p: skip phy setup for Exynos5440 based platforms 2013-05-30 21:34:29 +09:00
ehci-sched.c USB: EHCI: fix regression related to qh_refresh() 2013-05-30 21:20:04 +09:00
ehci-sead3.c USB: ehci-sead3: remove unnecessary platform_set_drvdata() 2013-05-16 17:47:16 -07:00
ehci-sh.c USB: ehci-sh: remove unnecessary platform_set_drvdata() 2013-05-16 17:47:17 -07:00
ehci-spear.c usb: host: ehci-spear: Remove redundant checks 2013-05-30 21:32:53 +09:00
ehci-sysfs.c
ehci-tegra.c USB: EHCI: tegra: Fix oops in error cleanup 2013-06-17 13:56:25 -07:00
ehci-tilegx.c usb: host: ehci-tilegx: Remove redundant platform_set_drvdata() 2013-05-17 10:14:52 -07:00
ehci-timer.c USB: EHCI: improve end_unlink_async() 2013-03-25 13:36:32 -07:00
ehci-w90x900.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
ehci-xilinx-of.c USB: host: use platform_{get,set}_drvdata() 2013-05-30 21:32:54 +09:00
ehci.h USB: EHCI: export ehci_handshake for ehci-hcd sub-drivers 2013-06-17 13:54:47 -07:00
fhci-dbg.c
fhci-hcd.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
fhci-hub.c
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
fhci.h USB: FHCI: upgrade the isochronous API 2013-05-30 21:34:31 +09:00
fsl-mph-dr-of.c USB: fsl-mph-dr-of: fix regression on mpc5121e 2013-01-11 16:01:06 -08:00
fusbh200-hcd.c usb: host: fusbh200-hcd: rename two functions 2013-06-03 10:52:40 -07:00
fusbh200.h usb host: Faraday USB2.0 FUSBH200-HCD driver 2013-05-17 10:12:52 -07:00
hwa-hc.c USB: HWA: fix device probe failure 2013-06-24 16:20:43 -07:00
imx21-dbg.c
imx21-hcd.c USB: IMX21: upgrade the isochronous API 2013-05-30 21:34:30 +09:00
imx21-hcd.h
isp116x-hcd.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
isp116x.h
isp1362-hcd.c procfs: new helper - PDE_DATA(inode) 2013-04-09 14:13:32 -04:00
isp1362.h
isp1760-hcd.c USB: remove remaining instances of USB_SUSPEND 2013-05-15 13:44:44 -04:00
isp1760-hcd.h
isp1760-if.c USB: host: use platform_{get,set}_drvdata() 2013-05-30 21:32:54 +09:00
Kconfig Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2013-07-13 14:52:21 -07:00
Makefile USB: EHCI: make ehci-tegra a separate driver 2013-06-17 13:54:48 -07:00
octeon2-common.c
ohci-at91.c USB: ohci-at91: prepare clk before calling enable 2013-06-24 16:21:52 -07:00
ohci-da8xx.c usb: host: ohci-da8xx: Remove redundant platform_set_drvdata() 2013-05-17 10:14:52 -07:00
ohci-dbg.c
ohci-ep93xx.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ohci-exynos.c USB: set device dma_mask without reference to global data 2013-05-16 17:30:52 -07:00
ohci-hcd.c USB: OHCI: remove bogus #error 2013-06-06 11:16:44 -07:00
ohci-hub.c USB: OHCI: prepare to make ohci-hcd a library module 2013-05-30 21:36:03 +09:00
ohci-jz4740.c USB: ohci-jz4740: remove unnecessary platform_set_drvdata() 2013-05-16 17:47:17 -07:00
ohci-mem.c
ohci-nxp.c drivers/usb/host: remove leftover release_mem_region 2013-05-30 21:32:52 +09:00
ohci-octeon.c usb: host: ohci-octeon: Remove redundant platform_set_drvdata() 2013-05-17 10:14:52 -07:00
ohci-omap3.c Merge 3.10-rc3 into usb-next 2013-05-27 11:00:52 +09:00
ohci-omap.c usb: host: ohci-omap: Remove redundant platform_set_drvdata() 2013-05-17 10:14:53 -07:00
ohci-pci.c USB: OHCI: make ohci-pci a separate driver 2013-05-30 21:36:03 +09:00
ohci-platform.c USB: OHCI: make ohci-platform a separate driver 2013-06-03 11:02:26 -07:00
ohci-ppc-of.c USB: host: use platform_{get,set}_drvdata() 2013-05-30 21:32:54 +09:00
ohci-ps3.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ohci-pxa27x.c Merge 3.10-rc3 into usb-next 2013-05-27 11:00:52 +09:00
ohci-q.c USB: OHCI: Generic changes to make ohci-pci a separate driver 2013-05-30 21:36:03 +09:00
ohci-s3c2410.c usb: Convert to devm_ioremap_resource() 2013-01-22 11:41:58 -08:00
ohci-sa1111.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ohci-sm501.c USB: ohci-sm501: remove unnecessary platform_set_drvdata() 2013-05-16 17:47:18 -07:00
ohci-spear.c Merge 3.10-rc3 into usb-next 2013-05-27 11:00:52 +09:00
ohci-tilegx.c usb: host: ohci-tilegx: Remove redundant platform_set_drvdata() 2013-05-17 10:14:53 -07:00
ohci-tmio.c usb: host: ohci-tmio: Remove redundant platform_set_drvdata() 2013-05-17 10:14:53 -07:00
ohci.h USB: OHCI: add a name for the platform-private field 2013-06-03 11:03:18 -07:00
oxu210hp-hcd.c Merge 3.10-rc3 into usb-next 2013-05-27 11:00:52 +09:00
oxu210hp.h
pci-quirks.c USB: OHCI: Generic changes to make ohci-pci a separate driver 2013-05-30 21:36:03 +09:00
pci-quirks.h usb: fix build warning in pci-quirks.h when CONFIG_PCI is not enabled 2013-07-25 08:09:55 -07:00
r8a66597-hcd.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
r8a66597.h
sl811_cs.c drivers/usb: use module_pcmcia_driver() in pcmcia drivers 2013-03-15 12:26:38 -07:00
sl811-hcd.c USB: remove remaining instances of USB_SUSPEND 2013-05-15 13:44:44 -04:00
sl811.h
ssb-hcd.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
u132-hcd.c USB: remove CONFIG_USB_SUSPEND option 2013-03-28 11:10:22 -07:00
uhci-debug.c USB: uhci: beautify source code 2013-01-24 13:59:26 -08:00
uhci-grlib.c USB: host: use platform_{get,set}_drvdata() 2013-05-30 21:32:54 +09:00
uhci-hcd.c Merge 3.8-rc5 into usb-next 2013-01-25 12:41:02 -08:00
uhci-hcd.h USB: UHCI: remove unused definition 2013-01-24 13:42:09 -08:00
uhci-hub.c USB: UHCI: fix for suspend of virtual HP controller 2013-05-15 13:41:40 -04:00
uhci-pci.c
uhci-platform.c USB: host: use platform_{get,set}_drvdata() 2013-05-30 21:32:54 +09:00
uhci-q.c USB: fix latency in uhci-hcd and ohci-hcd 2013-05-15 13:42:45 -04:00
xhci-dbg.c xhci: Remove BUG_ON in xhci_get_input_control_ctx. 2013-06-14 13:50:17 -07:00
xhci-ext-caps.h usb: xhci: add USB2 Link power management BESL support 2013-06-05 16:48:24 -07:00
xhci-hub.c usb: xhci: define port register names and use them instead of magic numbers 2013-06-05 16:47:21 -07:00
xhci-mem.c xhci: check for failed dma pool allocation 2013-06-18 10:53:54 -07:00
xhci-pci.c usb: host: xhci: Enable XHCI_SPURIOUS_SUCCESS for all controllers with xhci 1.0 2013-07-25 08:10:02 -07:00
xhci-plat.c usb: host: xhci-plat: release mem region while removing module 2013-06-24 16:15:26 -07:00
xhci-ring.c xhci: fix null pointer dereference on ring_doorbell_for_active_rings 2013-07-25 08:10:09 -07:00
xhci.c usb: host: xhci: Enable XHCI_SPURIOUS_SUCCESS for all controllers with xhci 1.0 2013-07-25 08:10:02 -07:00
xhci.h Merge 3.10-rc5 into usb-next 2013-06-08 21:27:51 -07:00