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2f02bc8af3
linux/drivers/usb/host
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Alan Stern 2656a9abcf USB: EHCI: bugfix: urb->hcpriv should not be NULL 
This patch (as1632b) fixes a bug in ehci-hcd.  The USB core uses
urb->hcpriv to determine whether or not an URB is active; host
controller drivers are supposed to set this pointer to a non-NULL
value when an URB is queued.  However ehci-hcd sets it to NULL for
isochronous URBs, which defeats the check in usbcore.

In itself this isn't a big deal.  But people have recently found that
certain sequences of actions will cause the snd-usb-audio driver to
reuse URBs without waiting for them to complete.  In the absence of
proper checking by usbcore, the URBs get added to their endpoint list
twice.  This leads to list corruption and a system freeze.

The patch makes ehci-hcd assign a meaningful value to urb->hcpriv for
isochronous URBs.  Improving robustness always helps.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Artem S. Tashkinov <t.artem@lycos.com>
Reported-by: Christof Meerwald <cmeerw@cmeerw.org>
CC: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-11 18:10:45 -08:00
..
whci USB: whci-hcd: fix NULL dereference on allocation failure 2012-08-15 15:17:39 -07:00
bcma-hcd.c usb/bcma: Add missing #include <linux/slab.h> 2012-04-23 13:22:00 -07:00
ehci-atmel.c USB: EHCI: remove ehci_port_power() routine 2012-10-31 12:48:07 -07:00
ehci-dbg.c USB: EHCI: remove unused Link Power Management code 2012-10-31 12:48:07 -07:00
ehci-fsl.c USB: EHCI: remove ehci_port_power() routine 2012-10-31 12:48:07 -07:00
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: remove ehci_port_power() routine 2012-10-31 12:48:07 -07:00
ehci-hcd.c USB: EHCI: miscellaneous cleanups for the library conversion 2012-11-11 18:06:48 -08:00
ehci-hub.c USB: EHCI: prepare to make ehci-hcd a library module 2012-11-01 08:51:12 -07:00
ehci-mem.c USB: EHCI: use hrtimer for (s)iTD deallocation 2012-07-16 16:54:25 -07:00
ehci-msm.c USB: EHCI: remove ehci_port_power() routine 2012-10-31 12:48:07 -07:00
ehci-mv.c drivers/usb/host/ehci-mv.c: use devm_ functions 2012-08-10 12:01:34 -07:00
ehci-mxc.c USB: EHCI: remove ehci_port_power() routine 2012-10-31 12:48:07 -07:00
ehci-octeon.c USB: EHCI: remove ehci_port_power() routine 2012-10-31 12:48:07 -07:00
ehci-omap.c USB: EHCI: remove ehci_port_power() routine 2012-10-31 12:48:07 -07:00
ehci-orion.c USB: EHCI: remove ehci_port_power() routine 2012-10-31 12:48:07 -07:00
ehci-pci.c USB: EHCI: miscellaneous cleanups for the library conversion 2012-11-11 18:06:48 -08:00
ehci-platform.c USB: EHCI: miscellaneous cleanups for the library conversion 2012-11-11 18:06:48 -08:00
ehci-pmcmsp.c USB: EHCI: remove ehci_port_power() routine 2012-10-31 12:48:07 -07:00
ehci-ppc-of.c drivers/usb/host/ehci-ppc-of.c: use devm_ functions 2012-08-10 12:04:09 -07:00
ehci-ps3.c EHCI: centralize controller initialization 2012-07-09 13:35:05 -07:00
ehci-q.c USB: EHCI: bugfix: urb->hcpriv should not be NULL 2012-11-11 18:10:45 -08:00
ehci-s5p.c usb: ehci-s5p: use clk_prepare_enable and clk_disable_unprepare 2012-10-24 14:39:06 -07:00
ehci-sched.c USB: EHCI: bugfix: urb->hcpriv should not be NULL 2012-11-11 18:10:45 -08:00
ehci-sead3.c Merge v3.6-rc3 into usb-next 2012-08-27 07:15:30 -07:00
ehci-sh.c USB: EHCI: remove ehci_port_power() routine 2012-10-31 12:48:07 -07:00
ehci-spear.c USB: EHCI: remove ehci_port_power() routine 2012-10-31 12:48:07 -07:00
ehci-sysfs.c
ehci-tegra.c USB: EHCI: remove ehci_port_power() routine 2012-10-31 12:48:07 -07:00
ehci-tilegx.c usb: add host support for the tilegx architecture 2012-07-18 16:40:29 -04:00
ehci-timer.c USB: EHCI: convert warning messages to debug-level 2012-09-21 09:37:53 -07:00
ehci-vt8500.c USB: EHCI: remove unused Link Power Management code 2012-10-31 12:48:07 -07:00
ehci-w90x900.c usb: "ehci-w90x900" Fix a typo and add some whitespace. 2012-10-24 14:51:22 -07:00
ehci-xilinx-of.c drivers/usb/host/ehci-xilinx-of.c: use devm_ functions 2012-08-10 12:04:10 -07:00
ehci.h USB: EHCI: miscellaneous cleanups for the library conversion 2012-11-11 18:06:48 -08:00
fhci-dbg.c USB: FHCI: Reusing QUICC Engine USB Controller registers from immap_qe.h 2012-06-26 19:42:11 -07:00
fhci-hcd.c USB: FHCI: Reusing QUICC Engine USB Controller registers from immap_qe.h 2012-06-26 19:42:11 -07:00
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: use list_move_tail instead of list_del/list_add_tail 2012-09-05 16:55:18 -07:00
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: Reusing QUICC Engine USB Controller registers from immap_qe.h 2012-06-26 19:42:11 -07:00
fsl-mph-dr-of.c fsl/usb: Add support for USB controller version 2.4 2012-09-21 09:43:55 -07:00
hwa-hc.c Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb 2012-01-09 12:09:47 -08:00
imx21-dbg.c usb: Fix typo in imx21-dbg.c 2012-02-13 14:32:34 -08:00
imx21-hcd.c usb: imx21-hcd.c: Use clk_prepare_enable/clk_disable_unprepare 2012-06-12 13:31:03 +03:00
imx21-hcd.h ARM: imx: move platform_data definitions 2012-09-14 11:17:21 +02:00
isp116x-hcd.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
isp116x.h
isp1362-hcd.c USB: isp1362-hcd.c: usb message always saved in case of underrun 2012-08-10 11:49:13 -07:00
isp1362.h
isp1760-hcd.c isp1760-hcd: fix possible memory leak if urb could not be enqueued 2012-04-18 13:51:19 -07:00
isp1760-hcd.h
isp1760-if.c USB: isp1760-if: Change to use irq_of_parse_and_map 2012-10-25 11:51:52 -07:00
Kconfig USB: EHCI: make ehci-platform a separate driver 2012-11-01 08:51:13 -07:00
Makefile USB: EHCI: make ehci-platform a separate driver 2012-11-01 08:51:13 -07:00
octeon2-common.c
ohci-at91.c USB: ohci: merge ohci_finish_controller_resume with ohci_resume 2012-10-22 11:23:59 -07:00
ohci-da8xx.c ARM: davinci: move platform_data definitions 2012-09-14 11:16:54 +02:00
ohci-dbg.c USB: ohci-dbg.c: remove dbg() usage 2012-05-01 21:33:37 -07:00
ohci-ep93xx.c USB: ohci: merge ohci_finish_controller_resume with ohci_resume 2012-10-22 11:23:59 -07:00
ohci-exynos.c USB: ohci-exynos: initialize registers pointer earlier 2012-11-02 09:25:20 -07:00
ohci-hcd.c USB: OHCI: remove Alchemy OHCI platform driver. 2012-10-22 11:29:12 -07:00
ohci-hub.c USB: ohci: merge ohci_finish_controller_resume with ohci_resume 2012-10-22 11:23:59 -07:00
ohci-jz4740.c
ohci-mem.c
ohci-nxp.c ARM: soc: general cleanups 2012-10-01 18:19:05 -07:00
ohci-octeon.c
ohci-omap3.c
ohci-omap.c USB: ohci: merge ohci_finish_controller_resume with ohci_resume 2012-10-22 11:23:59 -07:00
ohci-pci.c USB: ohci: move ohci_pci_{suspend,resume} to ohci-hcd.c 2012-10-22 11:23:59 -07:00
ohci-platform.c USB: OHCI: make ohci-platform use devm_request_and_ioremap helper 2012-10-22 11:30:26 -07:00
ohci-ppc-of.c USB: ohci-ppc-of.c: remove err() usage 2012-04-27 11:24:42 -07:00
ohci-ps3.c USB: ohci-ps3.c: remove err() usage 2012-04-27 11:24:43 -07:00
ohci-pxa27x.c USB: ohci: merge ohci_finish_controller_resume with ohci_resume 2012-10-22 11:23:59 -07:00
ohci-q.c OHCI: implement new semantics for URB_ISO_ASAP 2012-10-22 11:10:24 -07:00
ohci-s3c2410.c USB: ohci-s3c2410: use devm_ functions 2012-10-24 14:40:50 -07:00
ohci-sa1111.c USB: ohci-sa1111.c: remove dbg() usage 2012-05-01 21:33:39 -07:00
ohci-sm501.c USB: OHCI: sm501: fix build failure after ohci_finish_controller_resume removal 2012-10-23 10:18:53 -07:00
ohci-spear.c USB: ohci: merge ohci_finish_controller_resume with ohci_resume 2012-10-22 11:23:59 -07:00
ohci-tilegx.c usb: add host support for the tilegx architecture 2012-07-18 16:40:29 -04:00
ohci-tmio.c USB: ohci: merge ohci_finish_controller_resume with ohci_resume 2012-10-22 11:23:59 -07:00
ohci.h USB: move transceiver from ehci_hcd and ohci_hcd to hcd and rename it as phy 2012-06-13 12:38:36 -07:00
oxu210hp-hcd.c USB: oxu210hp-hcd.c: remove dbg() usage 2012-05-01 21:33:43 -07:00
oxu210hp.h
pci-quirks.c ehci: Add yet-another Lucid nohandoff pci quirk 2012-10-25 11:43:44 -07:00
pci-quirks.h usb: host: xhci: fix compilation error for non-PCI based stacks 2012-09-05 12:26:11 -07:00
r8a66597-hcd.c USB: hub_for_each_child should skip unconnected ports 2012-10-24 14:51:21 -07:00
r8a66597.h usb/host/r8a66597: remove conditional compilation of clk code 2012-07-30 17:25:12 -07:00
sl811_cs.c
sl811-hcd.c drivers/usb/host/sl811-hcd.c: removes unnecessary semicolon 2012-09-13 21:48:48 -07:00
sl811.h
ssb-hcd.c usb/ssb: Add missing #include <linux/slab.h> 2012-04-23 13:22:00 -07:00
u132-hcd.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
uhci-debug.c
uhci-grlib.c
uhci-hcd.c ARM: vt8500: Add support for UHCI companion controller 2012-08-16 14:00:37 -07:00
uhci-hcd.h
uhci-hub.c UHCI: hub_status_data should indicate if ports are resuming 2012-04-09 15:43:21 -07:00
uhci-pci.c
uhci-platform.c usb: Missing dma_mask in uhci-platform.c when probed from device-tree 2012-10-17 13:42:29 -07:00
uhci-q.c UHCI: implement new semantics for URB_ISO_ASAP 2012-10-22 11:10:24 -07:00
xhci-dbg.c xhci: trivial: Remove assigned but unused slot_ctx. 2012-10-25 13:13:48 -07:00
xhci-ext-caps.h xHCI: Correct the #define XHCI_LEGACY_DISABLE_SMI 2012-04-11 08:31:06 -07:00
xhci-hub.c usb/xhci: Remove (__force__ __u16) before assigning DeviceRemovable and assign directly. 2012-10-22 13:26:48 -07:00
xhci-mem.c xHCI: add aborting command ring function 2012-09-13 15:49:28 -07:00
xhci-pci.c xhci: Intel Panther Point BEI quirk. 2012-09-25 15:19:34 -07:00
xhci-plat.c usb: host: xhci-plat: use ioremap_nocache 2012-09-05 12:07:19 -07:00
xhci-ring.c xhci: Fix potential NULL ptr deref in command cancellation. 2012-10-25 13:13:47 -07:00
xhci.c xhci: trivial: Remove assigned but unused ep_ctx. 2012-10-25 13:13:48 -07:00
xhci.h xhci: Intel Panther Point BEI quirk. 2012-09-25 15:19:34 -07:00