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Daniel Mack f375fc520d usb: ehci-mxc: check for pdata before dereferencing 
Commit 7e8d5cd93fac ("USB: Add EHCI support for MX27 and MX31 based
boards") introduced code that could potentially lead to a NULL pointer
dereference on driver removal.

Fix this by checking for the value of pdata before dereferencing it.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: stable <stable@vger.kernel.org> # 2.6.33+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-23 10:46:03 -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: EHCI: support running URB giveback in tasklet context
2013-08-12 11:43:49 -07:00
ehci-fsl.h
…
ehci-grlib.c
USB: EHCI: support running URB giveback in tasklet context
2013-08-12 11:43:49 -07:00
ehci-hcd.c
USB: EHCI: support running URB giveback in tasklet context
2013-08-12 11:43:49 -07:00
ehci-hub.c
usb: host: add Kconfig option for EHSET
2013-08-14 12:18:26 -07:00
ehci-mem.c
USB: EHCI: improve interrupt qh unlink
2013-08-12 11:43:48 -07:00
ehci-msm.c
USB: EHCI: make ehci-msm a separate driver
2013-04-08 09:40:20 -07:00
ehci-mv.c
USB: EHCI: support running URB giveback in tasklet context
2013-08-12 11:43:49 -07:00
ehci-mxc.c
usb: ehci-mxc: check for pdata before dereferencing
2013-08-23 10:46:03 -07:00
ehci-octeon.c
USB: EHCI: support running URB giveback in tasklet context
2013-08-12 11:43:49 -07:00
ehci-omap.c
USB: host: use dev_get_platdata()
2013-07-31 17:53:50 -07:00
ehci-orion.c
USB: host: use dev_get_platdata()
2013-07-31 17:53:50 -07:00
ehci-pci.c
Intel xhci: refactor EHCI/xHCI port switching
2013-07-23 14:50:29 -07:00
ehci-platform.c
USB: host: use dev_get_platdata()
2013-07-31 17:53:50 -07:00
ehci-pmcmsp.c
USB: EHCI: support running URB giveback in tasklet context
2013-08-12 11:43:49 -07:00
ehci-ppc-of.c
USB: EHCI: support running URB giveback in tasklet context
2013-08-12 11:43:49 -07:00
ehci-ps3.c
USB: EHCI: support running URB giveback in tasklet context
2013-08-12 11:43:49 -07:00
ehci-q.c
usb: host: add Kconfig option for EHSET
2013-08-14 12:18:26 -07:00
ehci-s5p.c
USB: host: use dev_get_platdata()
2013-07-31 17:53:50 -07:00
ehci-sched.c
xhci: Step 1 to fix usb-linus and usb-next.
2013-08-15 18:00:46 -07:00
ehci-sead3.c
USB: EHCI: support running URB giveback in tasklet context
2013-08-12 11:43:49 -07:00
ehci-sh.c
USB: EHCI: support running URB giveback in tasklet context
2013-08-12 11:43:49 -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: host: tegra: Tegra30 support
2013-08-12 13:29:54 -05:00
ehci-tilegx.c
USB: EHCI: support running URB giveback in tasklet context
2013-08-12 11:43:49 -07:00
ehci-timer.c
USB: EHCI: improve interrupt qh unlink
2013-08-12 11:43:48 -07:00
ehci-w90x900.c
USB: EHCI: support running URB giveback in tasklet context
2013-08-12 11:43:49 -07:00
ehci-xilinx-of.c
USB: EHCI: support running URB giveback in tasklet context
2013-08-12 11:43:49 -07:00
ehci.h
usb: patches for v3.12 merge window
2013-08-13 15:28:01 -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
fotg210-hcd.c
usb: host: Faraday fotg210-hcd driver
2013-07-29 11:15:39 -07:00
fotg210.h
usb: host: Faraday fotg210-hcd driver
2013-07-29 11:15:39 -07:00
fsl-mph-dr-of.c
USB: host: use dev_get_platdata()
2013-07-31 17:53:50 -07:00
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
HWA: avoid constant suspend and resume on the root hub
2013-08-12 15:41:09 -07:00
imx21-dbg.c
…
imx21-hcd.c
USB: host: use dev_get_platdata()
2013-07-31 17:53:50 -07:00
imx21-hcd.h
…
isp116x-hcd.c
USB: host: use dev_get_platdata()
2013-07-31 17:53:50 -07:00
isp116x.h
USB: isp116x: remove dependency on CONFIG_USB_DEBUG
2013-07-23 16:35:17 -07:00
isp1362-hcd.c
USB: host: use dev_get_platdata()
2013-07-31 17:53:50 -07:00
isp1362.h
USB: isp1362: move debug files from proc to debugfs
2013-07-24 14:43:05 -07:00
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 dev_get_platdata()
2013-07-31 17:53:50 -07:00
Kconfig
xhci: Platform updates, 64-bit DMA, and trace events for 3.12.
2013-08-15 17:33:16 -07:00
Makefile
xhci: add traces for debug messages in xhci_address_device()
2013-08-13 16:05:38 -07:00
octeon2-common.c
…
ohci-at91.c
USB: ohci-at91: add usb_clk for transition to common clk framework
2013-08-02 11:31:29 +08:00
ohci-da8xx.c
USB: host: use dev_get_platdata()
2013-07-31 17:53:50 -07:00
ohci-dbg.c
…
ohci-ep93xx.c
usb: ohci-ep93xx: tidy up driver (*probe) and (*remove)
2013-07-26 13:54:29 -07:00
ohci-exynos.c
USB: host: use dev_get_platdata()
2013-07-31 17:53:50 -07:00
ohci-hcd.c
USB: ohci_usb warn "irq nobody cared" on shutdown
2013-07-26 13:55:21 -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
USB: host: Use usb_hcd_platform_shutdown() wherever possible
2013-07-25 12:01:12 -07:00
ohci-omap.c
USB: host: use dev_get_platdata()
2013-07-31 17:53:50 -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: host: use dev_get_platdata()
2013-07-31 17:53:50 -07:00
ohci-ppc-of.c
USB: host: Use usb_hcd_platform_shutdown() wherever possible
2013-07-25 12:01:12 -07:00
ohci-ps3.c
usb: remove use of __devinit
2012-11-21 13:27:16 -08:00
ohci-pxa27x.c
USB: host: use dev_get_platdata()
2013-07-31 17:53:50 -07:00
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: host: use dev_get_platdata()
2013-07-31 17:53:50 -07:00
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: use dev_get_platdata()
2013-07-31 17:53:50 -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
Intel xhci: refactor EHCI/xHCI port switching
2013-07-23 14:50:29 -07:00
pci-quirks.h
Merge 3.11-rc3 into usb-next
2013-07-29 07:43:16 -07:00
r8a66597-hcd.c
USB: host: use dev_get_platdata()
2013-07-31 17:53:50 -07:00
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: host: use dev_get_platdata()
2013-07-31 17:53:50 -07:00
sl811.h
USB: sl811: move debug files from proc to debugfs
2013-07-24 14:43:05 -07:00
ssb-hcd.c
usb: remove use of __devexit
2012-11-21 13:27:17 -08:00
u132-hcd.c
USB: host: use dev_get_platdata()
2013-07-31 17:53:50 -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: add traces for debug messages in xhci_address_device()
2013-08-13 16:05:38 -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
xhci: add trace for debug messages related to quirks
2013-08-13 16:05:41 -07:00
xhci-mem.c
xhci: Step 1 to fix usb-linus and usb-next.
2013-08-15 18:00:46 -07:00
xhci-pci.c
xhci: add trace for debug messages related to quirks
2013-08-13 16:05:41 -07:00
xhci-plat.c
xhci: Step 1 to fix usb-linus and usb-next.
2013-08-15 18:00:46 -07:00
xhci-ring.c
xhci: trace debug statements related to ring expansion
2013-08-13 21:14:44 -07:00
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: trace debug statements related to ring expansion
2013-08-13 21:14:44 -07:00
xhci.c
xhci: Step 1 to fix usb-linus and usb-next.
2013-08-15 18:00:46 -07:00
xhci.h
xhci: Step 1 to fix usb-linus and usb-next.
2013-08-15 18:00:46 -07:00