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According to xHCI spec v1.1 section 6.4.5 TRB Completion Codes, the standard XHCI controller provide a TRB Completion Status 'USB Transaction Error' to asserted in the case where the host did not receive a valid response from the device, it's useful to handle pending URBs on the endpoint when the USB device is plugged out. Unfortunately, some SOCs USB 3.0 modules lose the ability to assert the 'USB Transaction Error' status when USB 3.0 device disconnect. This may cause the pending URBs unhandled, even lead to USB class driver stalled in waiting for URBs complete. This patch flush pending URBs in usb_disable_device() when USB 3.0 device disconnect, it will call xhci_urb_dequeue() -> xhci_queue_stop_endpoint() to cancel pending URBs and giveback URB status immediately. Change-Id: If8acac59bc1f2c10a41ee390ccbeb84b2e7743c1 Signed-off-by: Feng Mingli <fml@rock-chips.com> Signed-off-by: Frank Wang <frank.wang@rock-chips.com> |
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| .. | ||
| buffer.c | ||
| config.c | ||
| devices.c | ||
| devio.c | ||
| driver.c | ||
| endpoint.c | ||
| file.c | ||
| generic.c | ||
| hcd-pci.c | ||
| hcd.c | ||
| hub.c | ||
| hub.h | ||
| Kconfig | ||
| Makefile | ||
| message.c | ||
| notify.c | ||
| otg_whitelist.h | ||
| port.c | ||
| quirks.c | ||
| sysfs.c | ||
| urb.c | ||
| usb-acpi.c | ||
| usb.c | ||
| usb.h | ||