Alan Stern 3a44494e23 USB: EHCI: rescan the queue after an unlink ... This patch (as1280) fixes an obscure bug in ehci-hcd's dequeuing logic for async URBs. If a later URB is unlinked and the completion routine unlinks an earlier URB, then the earlier URB won't be given back in a timely manner because the endpoint queue isn't rescanned as it should be. Similar bugs occur if an endpoint is reset or a halt is cleared while a completion routine is running, because the subroutines don't test for the COMPLETING state. All these problems are solved by adding a new needs_rescan flag to the ehci_qh structure. If the flag is set while scanning through an idle QH, the scan will be repeated. If the QH isn't idle then an unlink cycle will be initiated, and the proper action will be taken when it becomes idle. Also, an unnecessary test is removed from qh_link_async(): That routine is never called if the QH's state isn't IDLE. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>		2009-09-23 06:46:37 -07:00
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whci	USB: whci-hcd: make endpoint_reset method async	2009-09-23 06:46:21 -07:00
ehci-atmel.c	USB: at91: Add USB EHCI driver for at91sam9g45 series	2009-09-23 06:46:30 -07:00
ehci-au1xxx.c	USB: au1xxx: add dev_pm_ops	2009-09-23 06:46:29 -07:00
ehci-dbg.c	USB: EHCI: split ehci_qh into hw and sw parts	2009-09-23 06:46:29 -07:00
ehci-fsl.c	USB: EHCI: use the new clear_tt_buffer interface	2009-07-12 15:16:39 -07:00
ehci-fsl.h
ehci-hcd.c	USB: EHCI: rescan the queue after an unlink	2009-09-23 06:46:37 -07:00
ehci-hub.c	USB: EHCI: ensure all watchdog timer events are deleted when suspending usb	2009-09-23 06:46:33 -07:00
ehci-ixp4xx.c	USB: EHCI: use the new clear_tt_buffer interface	2009-07-12 15:16:39 -07:00
ehci-mem.c	USB: EHCI: split ehci_qh into hw and sw parts	2009-09-23 06:46:29 -07:00
ehci-orion.c	USB: ehci-orion: Call ehci_reset before ehci_halt	2009-07-28 14:31:10 -07:00
ehci-pci.c	USB: EHCI: add need_io_watchdog flag to ehci_hcd	2009-09-23 06:46:28 -07:00
ehci-ppc-of.c	USB: EHCI: use the new clear_tt_buffer interface	2009-07-12 15:16:39 -07:00
ehci-ps3.c	USB: EHCI: use the new clear_tt_buffer interface	2009-07-12 15:16:39 -07:00
ehci-q.c	USB: EHCI: rescan the queue after an unlink	2009-09-23 06:46:37 -07:00
ehci-sched.c	USB: EHCI: split ehci_qh into hw and sw parts	2009-09-23 06:46:29 -07:00
ehci-w90x900.c	USB: Add nuvoton Ehci driver for w90p910 platform	2009-09-23 06:46:20 -07:00
ehci.h	USB: EHCI: rescan the queue after an unlink	2009-09-23 06:46:37 -07:00
fhci-dbg.c	USB: FHCI: use the new usb debugfs directory	2009-06-15 21:44:43 -07:00
fhci-hcd.c
fhci-hub.c
fhci-mem.c
fhci-q.c
fhci-sched.c	USB: fhci: mutually exclusive port_status	2009-07-12 15:16:36 -07:00
fhci-tds.c
fhci.h
hwa-hc.c	wusb: hwa-hc: Drop unused pci_suspend/resume hooks.	2009-06-15 21:44:44 -07:00
isp116x-hcd.c
isp116x.h
isp1362-hcd.c	USB: isp1362: Correct use of ! and &	2009-09-23 06:46:33 -07:00
isp1362.h	USB: isp1362: fix pulldown register defines and conf logic	2009-09-23 06:46:33 -07:00
isp1760-hcd.c	USB: isp1760: allow platform devices to customize devflags	2009-09-23 06:46:29 -07:00
isp1760-hcd.h	USB: isp1760: allow platform devices to customize devflags	2009-09-23 06:46:29 -07:00
isp1760-if.c	USB: isp1760: allow platform devices to customize devflags	2009-09-23 06:46:29 -07:00
Kconfig	USB: NXP ISP1362 USB host driver	2009-09-23 06:46:30 -07:00
Makefile	USB: NXP ISP1362 USB host driver	2009-09-23 06:46:30 -07:00
ohci-at91.c	USB: at91: modify OHCI driver to allow shared interrupts	2009-09-23 06:46:31 -07:00
ohci-au1xxx.c	USB: au1xxx: add dev_pm_ops	2009-09-23 06:46:29 -07:00
ohci-dbg.c	USB: OHCI: use the ohci structure directly in debugfs files.	2009-06-15 21:44:43 -07:00
ohci-ep93xx.c	USB: ohci-ep93xx.c: remove unused variable	2009-09-23 06:46:34 -07:00
ohci-hcd.c	USB: EHCI: OHCI: Remove unnecessary includes of reboot.h	2009-09-23 06:46:32 -07:00
ohci-hub.c
ohci-lh7a404.c
ohci-mem.c
ohci-omap.c	USB: OMAP: OHCI: hc_driver's stop method should call ohci_stop	2009-07-28 14:31:09 -07:00
ohci-pci.c	USB: new flag for resume-from-hibernation	2009-06-15 21:44:44 -07:00
ohci-pnx4008.c
ohci-pnx8550.c
ohci-ppc-of.c
ohci-ppc-soc.c
ohci-ps3.c	usb/ps3: Add missing annotations	2009-06-16 14:17:32 +10:00
ohci-pxa27x.c	USB: ohci-pxa27x: Allow NOCP and OCPM to be cleared	2009-09-23 06:46:32 -07:00
ohci-q.c	trivial: OHCI: Fix typo in a comment	2009-09-21 15:14:51 +02:00
ohci-s3c2410.c
ohci-sa1111.c
ohci-sh.c
ohci-sm501.c
ohci-ssb.c
ohci-tmio.c
ohci.h
oxu210hp-hcd.c	USB: EHCI: OHCI: Remove unnecessary includes of reboot.h	2009-09-23 06:46:32 -07:00
oxu210hp.h
pci-quirks.c	USB: Work around BIOS bugs by quiescing USB controllers earlier	2009-09-23 06:46:33 -07:00
pci-quirks.h
r8a66597-hcd.c	usb: fix hibernate in r8a66597-hcd dev_pm_ops conversion.	2009-07-29 21:31:13 +09:00
r8a66597.h	usb: move r8a66597 register defines	2009-07-23 13:04:10 +09:00
sl811-hcd.c	USB: sl811-hcd: Fix device disconnect:	2009-09-23 06:46:16 -07:00
sl811.h
sl811_cs.c
u132-hcd.c
uhci-debug.c
uhci-hcd.c	debugfs: Modified default dir of debugfs for debugging UHCI.	2009-09-15 09:50:49 -07:00
uhci-hcd.h
uhci-hub.c
uhci-q.c	USB: uhci: rm repeatedly evaluation for urbp->qh	2009-09-23 06:46:30 -07:00
xhci-dbg.c	USB: xhci: Fix slot and endpoint context debugging.	2009-09-23 06:46:17 -07:00
xhci-ext-caps.h	USB: xhci: Support xHCI host controllers and USB 3.0 devices.	2009-06-15 21:44:48 -07:00
xhci-hcd.c	USB: xhci: Support interrupt transfers.	2009-09-23 06:46:18 -07:00
xhci-hub.c	USB: xhci: Root hub support.	2009-06-15 21:44:48 -07:00
xhci-mem.c	USB: xhci: Set correct max packet size for HS/FS control endpoints.	2009-09-23 06:46:17 -07:00
xhci-pci.c	USB: xhci: Add quirk for Fresco Logic xHCI hardware.	2009-09-23 06:46:17 -07:00
xhci-ring.c	USB: xhci: Support interrupt transfers.	2009-09-23 06:46:18 -07:00
xhci.h	USB: xhci: Support interrupt transfers.	2009-09-23 06:46:18 -07:00