commit d3abda5a98a18e524e17fd4085c9f4bd53e9ef53
author Thinh Nguyen <Thinh.Nguyen@synopsys.com> Wed Nov 27 13:10:47 2019 -0800
committer Felipe Balbi <balbi@kernel.org> Tue Dec 10 14:52:41 2019 +0200
tree 41b2da4a83b9873a71f5671c8cbc0f1f3a74eed5
parent 8c7d4b7b3d43c54c0b8c1e4adb917a151c754196

usb: dwc3: gadget: Clear started flag for non-IOC

Normally the END_TRANSFER command completion handler will clear the
DWC3_EP_TRANSFER_STARTED flag. However, if the command was sent without
interrupt on completion, then the flag will not be cleared. Make sure to
clear the flag in this case.

Cc: stable@vger.kernel.org
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>

drivers/usb/dwc3/gadget.c

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 6ff6ee4..0c960a9 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -2719,6 +2719,9 @@ static void dwc3_stop_active_transfer(struct dwc3_ep *dep, bool force,
 	WARN_ON_ONCE(ret);
 	dep->resource_index = 0;
 
+	if (!interrupt)
+		dep->flags &= ~DWC3_EP_TRANSFER_STARTED;
+
 	if (dwc3_is_usb31(dwc) || dwc->revision < DWC3_REVISION_310A)
 		udelay(100);
 }