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linux/drivers/usb/host
History
Alan Stern 375ef46305 USB: EHCI: unlink QHs even after the controller has stopped 
commit 7312b5ddd4 upstream.

Old code in ehci-hcd tries to expedite disabling endpoints after the
controller has stopped, by destroying the endpoint's associated QH
without first unlinking the QH.  This was necessary back when the
driver wasn't so careful about keeping track of the controller's
state.

But now we are careful about it, and the driver knows that when the
controller isn't running, no unlinking delay is needed.  Furthermore,
skipping the unlink step will trigger a BUG() in qh_destroy() when the
preceding QH is released, because the link pointer will be non-NULL.

Removing the lines that skip the unlinking step and go directly to
QH_STATE_IDLE fixes the problem.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Joe Lawrence <joe.lawrence@stratus.com>
Tested-by: Joe Lawrence <joe.lawrence@stratus.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2014-10-05 14:52:15 -07:00
..
whci usb: delete non-required instances of include <linux/init.h> 2014-01-08 15:01:39 -08:00
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 usb: hcd: move controller wakeup setting initialization to individual driver 2013-12-08 18:06:46 -08:00
ehci-fsl.c fsl-usb: do not test for PHY_CLK_VALID bit on controller version 1.6 2014-06-07 10:28:15 -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-grlib: use dev_err() instead of printk() 2013-12-18 16:32:41 -08:00
ehci-hcd.c USB: EHCI: unlink QHs even after the controller has stopped 2014-10-05 14:52:15 -07:00
ehci-hub.c usb: ehci: using wIndex + 1 for hub port 2014-09-05 16:34:17 -07:00
ehci-mem.c USB: EHCI: fix sparse errors 2013-10-19 14:08:04 -07:00
ehci-msm.c USB: ehci-msm: Add device tree support and binding information 2013-10-11 16:31:15 -07:00
ehci-mv.c usb: hcd: move controller wakeup setting initialization to individual driver 2013-12-08 18:06:46 -08:00
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: Use devm_*() functions 2013-12-18 16:33:47 -08:00
ehci-pci.c USB: ehci-pci: USB host controller support for Intel Quark X1000 2014-09-05 16:34:12 -07:00
ehci-platform.c usb: hcd: move controller wakeup setting initialization to individual driver 2013-12-08 18:06:46 -08:00
ehci-pmcmsp.c usb: hcd: move controller wakeup setting initialization to individual driver 2013-12-08 18:06:46 -08:00
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: hcd: move controller wakeup setting initialization to individual driver 2013-12-08 18:06:46 -08:00
ehci-sysfs.c USB: EHCI: use a bandwidth-allocation table 2013-10-11 16:45:43 -07:00
ehci-tegra.c USB: EHCI: tegra: set txfill_tuning 2014-05-06 07:59:38 -07:00
ehci-tilegx.c usb: hcd: move controller wakeup setting initialization to individual driver 2013-12-08 18:06:46 -08:00
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: add freescale imx28 special write register method 2014-01-13 15:54:03 -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: 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 USB: make hcd.h public (drivers dependency) 2010-05-20 13:21:30 -07:00
fhci-q.c USB: make hcd.h public (drivers dependency) 2010-05-20 13:21:30 -07:00
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 usb: hcd: move controller wakeup setting initialization to individual driver 2013-12-08 18:06:46 -08:00
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: delete non-required instances of include <linux/init.h> 2014-01-08 15:01:39 -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 usb/isp1760: Allow to optionally trigger low-level chip reset via GPIOLIB. 2011-10-19 13:29:06 -07:00
isp1760-if.c USB: host: use dev_get_platdata() 2013-07-31 17:53:50 -07:00
Kconfig usb: ohci: remove ep93xx bus glue platform driver 2013-10-29 16:43:37 -07:00
Makefile usb: kill DEBUG compile option 2013-12-03 10:34:33 -08:00
octeon2-common.c usb: Configure octeon2 glue logic for proper uSOF cycle period. 2011-05-03 10:09:32 -07:00
ohci-at91.c USB: fix: ohci-at91 mismerge build error 2014-01-07 09:30:48 -08:00
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 2014-09-05 16:34:12 -07:00
ohci-exynos.c usb: hcd: move controller wakeup setting initialization to individual driver 2013-12-08 18:06:46 -08:00
ohci-hcd.c USB: OHCI: fix bugs in debug routines 2014-09-05 16:34:12 -07:00
ohci-hub.c USB: OHCI: fix problem with global suspend on ATI controllers 2014-06-07 10:28:15 -07:00
ohci-jz4740.c USB: ohci-jz4740: Use devm_*() functions 2013-12-18 16:35:11 -08:00
ohci-mem.c USB: OHCI handles more ZFMicro quirks 2007-10-12 14:54:59 -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 2014-06-07 10:28:15 -07:00
ohci-platform.c usb: hcd: move controller wakeup setting initialization to individual driver 2013-12-08 18:06:46 -08:00
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:Use devm_*() functions 2013-12-18 16:35:10 -08:00
ohci-q.c USB: OHCI: don't lose track of EDs when a controller dies 2014-09-05 16:34:12 -07:00
ohci-s3c2410.c usb: hcd: move controller wakeup setting initialization to individual driver 2013-12-08 18:06:46 -08:00
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: Use devm_ioremap_resource() 2013-12-18 16:36:11 -08:00
ohci-tilegx.c usb: hcd: move controller wakeup setting initialization to individual driver 2013-12-08 18:06:46 -08:00
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: fix problem with global suspend on ATI controllers 2014-06-07 10:28:15 -07:00
oxu210hp-hcd.c usb: delete non-required instances of include <linux/init.h> 2014-01-08 15:01:39 -08:00
oxu210hp.h USB: replace uses of __constant_{endian} 2009-03-24 16:20:33 -07:00
pci-quirks.c USB: EHCI: avoid BIOS handover on the HASEE E200 2014-06-30 20:11:53 -07:00
pci-quirks.h usb: ohci: use amd_chipset_type to filter for SB800 prefetch 2013-10-03 15:44:51 -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: hcd: move controller wakeup setting initialization to individual driver 2013-12-08 18:06:46 -08:00
uhci-hcd.c usb: kill DEBUG compile option 2013-12-03 10:34:33 -08:00
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 usb: hcd: move controller wakeup setting initialization to individual driver 2013-12-08 18:06:46 -08:00
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 2014-10-05 14:52:15 -07:00
xhci-mem.c xhci: Fix null pointer dereference if xhci initialization fails 2014-10-05 14:52:15 -07:00
xhci-pci.c usb: xhci: amd chipset also needs short TX quirk 2014-09-05 16:34:17 -07:00
xhci-plat.c usb: xhci: change enumeration scheme to 'new scheme' by default 2013-12-10 13:54:37 -08:00
xhci-ring.c xhci: Treat not finding the event_seg on COMP_STOP the same as COMP_STOP_INVAL 2014-09-05 16:34:17 -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: 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 2014-10-05 14:52:15 -07:00
xhci.h usb: xhci: Prefer endpoint context dequeue pointer over stopped_trb 2014-05-06 07:59:37 -07:00