Commit b6842d49 authored by Thinh Nguyen's avatar Thinh Nguyen Committed by Felipe Balbi
Browse files

usb: dwc3: gadget: Check for in-progress END_TRANSFER 



While handling TRBs completion, if a END_TRANSFER command isn't
completed, don't kick new transfer or issue END_TRANSFER command.

Signed-off-by: default avatarThinh Nguyen <thinhn@synopsys.com>
Signed-off-by: default avatarFelipe Balbi <balbi@kernel.org>
parent 27b31b91

drivers/usb/dwc3/gadget.c

+4 −0
Original line number Diff line number Diff line
@@ -2675,11 +2675,15 @@ static void dwc3_gadget_endpoint_transfer_in_progress(struct dwc3_ep *dep, 


	dwc3_gadget_ep_cleanup_completed_requests(dep, event, status);



	if (dep->flags & DWC3_EP_END_TRANSFER_PENDING)

		goto out;



	if (stop)

		dwc3_stop_active_transfer(dep, true, true);

	else if (dwc3_gadget_ep_should_continue(dep))

		__dwc3_gadget_kick_transfer(dep);



out:

	/*

	 * WORKAROUND: This is the 2nd half of U1/U2 -> U0 workaround.

	 * See dwc3_gadget_linksts_change_interrupt() for 1st half.