diff mbox series

[v2,04/11] usb: dwc3: gadget: Check for in-progress END_TRANSFER

Message ID a31692578e4ddd342d2ff58035834c4b25755e7e.1588732815.git.thinhn@synopsys.com (mailing list archive)
State Mainlined
Commit b6842d4938c3101cb54dc262a6a89a5445f8fba8
Headers show
Series usb: dwc3: gadget: Handle streams | expand

Commit Message

Thinh Nguyen May 6, 2020, 2:46 a.m. UTC 
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: Thinh Nguyen <thinhn@synopsys.com>
---
 drivers/usb/dwc3/gadget.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 865e6fbb7360..3bb6f847a865 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -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.