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Commit c4d9817a authored by Hemant Kumar's avatar Hemant Kumar
Browse files

usb: core: Allow secondary event ring clean upon disconnect 



If device is disconnected in the middle of data transfer
there is a possibility of pending events in the secondary
event ring. As a result when xHC is halted as part of device
disconnect, device is not getting detected upon re-connect.
Fix the issue by acknowledging the pending events upon
device disconnect. Also this allows to finish the clean up
of event ring otherwise this results into a memory leak.

Change-Id: I2ec3d74867e0129dad395d1dbe920b468ac5949d
Signed-off-by: default avatarHemant Kumar <hemantk@codeaurora.org>
parent 83c03ff2

drivers/usb/core/usb.c

+0 −3
Original line number Diff line number Diff line
@@ -838,9 +838,6 @@ EXPORT_SYMBOL(usb_sec_event_ring_setup); 
int usb_sec_event_ring_cleanup(struct usb_device *dev,

	unsigned int intr_num)

{

	if (dev->state == USB_STATE_NOTATTACHED)

		return 0;



	return usb_hcd_sec_event_ring_cleanup(dev, intr_num);

}

EXPORT_SYMBOL(usb_sec_event_ring_cleanup);