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kernel-fxtec-pro1x/drivers/usb/host
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Alan Stern 7a0f0d9512 USB: EHCI: fix two new bugs related to Clear-TT-Buffer 
This patch (as1273) fixes two(!) bugs introduced by the new
Clear-TT-Buffer implementation in ehci-hcd.

	It is now possible for an idle QH to have some URBs on its
	queue -- this will happen if a Clear-TT-Buffer is pending for
	the QH's endpoint.  Consequently we should not issue a warning
	when someone tries to unlink an URB from an idle QH; instead
	we should process the request immediately.

	The refcounts for QHs could get messed up, because
	submit_async() would increment the refcount when calling
	qh_link_async() and qh_link_async() would then refuse to link
	the QH into the schedule if a Clear-TT-Buffer was pending.
	Instead we should increment the refcount only when the QH
	actually is added to the schedule.  The current code tries to
	be clever by leaving the refcount alone if an unlink is
	immediately followed by a relink; the patch changes this to an
	unconditional decrement and increment (although they occur in
	the opposite order).

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: David Brownell <david-b@pacbell.net>
Tested-by: Manuel Lauss <manuel.lauss@gmail.com>
Tested-by: Matthijs Kooijman <matthijs@stdin.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-08-07 16:05:13 -07:00
..
whci USB: whci-hcd: check return value of usb_hcd_link_urb_to_ep() 2009-04-17 10:50:27 -07:00
ehci-au1xxx.c USB: EHCI: use the new clear_tt_buffer interface 2009-07-12 15:16:39 -07:00
ehci-dbg.c
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: fix two new bugs related to Clear-TT-Buffer 2009-08-07 16:05:13 -07:00
ehci-hub.c USB: EHCI: create sysfs companion files directly in the controller device 2009-06-15 21:44:43 -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: slow down ITD reuse 2009-02-27 14:40:50 -08:00
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: use the new clear_tt_buffer interface 2009-07-12 15:16:39 -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: fix two new bugs related to Clear-TT-Buffer 2009-08-07 16:05:13 -07:00
ehci-sched.c USB: EHCI: report actual_length for iso transfers 2009-07-12 15:16:40 -07:00
ehci.h USB: EHCI: use the new clear_tt_buffer interface 2009-07-12 15:16:39 -07:00
fhci-dbg.c USB: FHCI: use the new usb debugfs directory 2009-06-15 21:44:43 -07:00
fhci-hcd.c USB: FHCI: use dev_name() in place of bus_id. 2009-03-24 16:38:23 -07:00
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 USB: make transfer_buffer_lengths in struct urb field u32 2009-03-24 16:20:36 -07:00
isp116x.h USB: add missing KERN_* constants to printks 2009-03-24 16:20:30 -07:00
isp1760-hcd.c USB: isp1760: urb_dequeue doesn't always find the urbs 2009-05-28 13:54:43 -07:00
isp1760-hcd.h USB: Make the isp1760_register function prototype more generic 2009-03-24 16:20:31 -07:00
isp1760-if.c USB: isp1760: use __devexit_p() for remove function 2009-07-12 15:16:36 -07:00
Kconfig USB: buildfix ppc randconfig 2009-07-12 15:16:37 -07:00
Makefile USB: xhci: Add Makefile, MAINTAINERS, and Kconfig entries. 2009-06-15 21:44:51 -07:00
ohci-at91.c [ARM] 5446/1: ohci-at91: Limit vbus_pin assignment to the size of the array 2009-04-08 20:36:18 +01:00
ohci-au1xxx.c
ohci-dbg.c USB: OHCI: use the ohci structure directly in debugfs files. 2009-06-15 21:44:43 -07:00
ohci-ep93xx.c [ARM] 5526/1: ep93xx: usb driver cleanup 2009-05-29 20:16:29 +01:00
ohci-hcd.c USB: OHCI: use the new usb debugfs directory 2009-06-15 21:44:43 -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
ohci-q.c
ohci-s3c2410.c USB: S3C: Move usb-control.h to platform include 2009-03-24 16:20:45 -07:00
ohci-sa1111.c
ohci-sh.c
ohci-sm501.c
ohci-ssb.c
ohci-tmio.c
ohci.h
oxu210hp-hcd.c USB: host: fix sparse warning: Using plain integer as NULL pointer 2009-03-24 16:20:44 -07:00
oxu210hp.h USB: replace uses of __constant_{endian} 2009-03-24 16:20:33 -07:00
pci-quirks.c USB: xhci: BIOS handoff and HW initialization. 2009-06-15 21:44:48 -07:00
pci-quirks.h
r8a66597-hcd.c headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
r8a66597.h USB: r8a66597-hcd: use platform_data instead of module_param 2009-06-15 21:44:46 -07:00
sl811-hcd.c USB: make transfer_buffer_lengths in struct urb field u32 2009-03-24 16:20:36 -07:00
sl811.h
sl811_cs.c
u132-hcd.c
uhci-debug.c USB: uhci: don't use pseudo negative values 2009-03-24 16:20:36 -07:00
uhci-hcd.c USB: new flag for resume-from-hibernation 2009-06-15 21:44:44 -07:00
uhci-hcd.h USB: replace uses of __constant_{endian} 2009-03-24 16:20:33 -07:00
uhci-hub.c
uhci-q.c USB: UHCI queue: use usb_endpoint_type() 2009-06-15 21:44:42 -07:00
xhci-dbg.c USB: xhci: Support for 64-byte contexts 2009-07-28 14:31:13 -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: Stall handling bug fixes. 2009-07-28 14:31:13 -07:00
xhci-hub.c USB: xhci: Root hub support. 2009-06-15 21:44:48 -07:00
xhci-mem.c USB: xhci: Support for 64-byte contexts 2009-07-28 14:31:13 -07:00
xhci-pci.c USB: xhci: Deal with stalled endpoints. 2009-07-28 14:31:11 -07:00
xhci-ring.c USB: xhci: Stall handling bug fixes. 2009-07-28 14:31:13 -07:00
xhci.h USB: xhci: Stall handling bug fixes. 2009-07-28 14:31:13 -07:00