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Commit c6f58dcd authored by Thinh Nguyen's avatar Thinh Nguyen Committed by Greg Kroah-Hartman
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usb: dwc3: ep0: Clear started flag on completion 



commit 2d7b78f59e020b07fc6338eefe286f54ee2d6773 upstream.

Clear ep0's DWC3_EP_TRANSFER_STARTED flag if the END_TRANSFER command is
completed. Otherwise, we can't start control transfer again after
END_TRANSFER.

Cc: stable@vger.kernel.org
Signed-off-by: default avatarThinh Nguyen <thinhn@synopsys.com>
Signed-off-by: default avatarFelipe Balbi <balbi@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 16831495

drivers/usb/dwc3/ep0.c

+8 −0
Original line number Diff line number Diff line
@@ -1110,6 +1110,9 @@ static void dwc3_ep0_xfernotready(struct dwc3 *dwc, 
void dwc3_ep0_interrupt(struct dwc3 *dwc,

		const struct dwc3_event_depevt *event)

{

	struct dwc3_ep	*dep = dwc->eps[event->endpoint_number];

	u8		cmd;



	switch (event->endpoint_event) {

	case DWC3_DEPEVT_XFERCOMPLETE:

		dwc3_ep0_xfer_complete(dwc, event);
@@ -1122,7 +1125,12 @@ void dwc3_ep0_interrupt(struct dwc3 *dwc, 
	case DWC3_DEPEVT_XFERINPROGRESS:

	case DWC3_DEPEVT_RXTXFIFOEVT:

	case DWC3_DEPEVT_STREAMEVT:

		break;

	case DWC3_DEPEVT_EPCMDCMPLT:

		cmd = DEPEVT_PARAMETER_CMD(event->parameters);



		if (cmd == DWC3_DEPCMD_ENDTRANSFER)

			dep->flags &= ~DWC3_EP_TRANSFER_STARTED;

		break;

	}

}