The patch below does not apply to the 4.19-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@xxxxxxxxxxxxxxx>.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
>From a114c4ca64bd522aec1790c7e5c60c882f699d8f Mon Sep 17 00:00:00 2001
From: Thinh Nguyen <Thinh.Nguyen@xxxxxxxxxxxx>
Date: Thu, 5 Mar 2020 13:23:49 -0800
Subject: [PATCH] usb: dwc3: gadget: Don't clear flags before transfer ended
We track END_TRANSFER command completion. Don't clear transfer
started/ended flag prematurely. Otherwise, we'd run into the problem
with restarting transfer before END_TRANSFER command finishes.
Fixes: 6d8a019614f3 ("usb: dwc3: gadget: check for Missed Isoc from event status")
Signed-off-by: Thinh Nguyen <thinhn@xxxxxxxxxxxx>
Signed-off-by: Felipe Balbi <balbi@xxxxxxxxxx>
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 1e00bf2d65a2..b032e62fff0f 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -2570,10 +2570,8 @@ static void dwc3_gadget_endpoint_transfer_in_progress(struct dwc3_ep *dep,
dwc3_gadget_ep_cleanup_completed_requests(dep, event, status);
- if (stop) {
+ if (stop)
dwc3_stop_active_transfer(dep, true, true);
- dep->flags = DWC3_EP_ENABLED;
- }
/*
* WORKAROUND: This is the 2nd half of U1/U2 -> U0 workaround.
