This is a note to let you know that I've just added the patch titled
usb: dwc3: gadget: Return success always for kick transfer in ep queue
to the 5.11-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-dwc3-gadget-return-success-always-for-kick-transfer-in-ep-queue.patch
and it can be found in the queue-5.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 18ffa988dbae69cc6e9949cddd9606f6fe533894 Mon Sep 17 00:00:00 2001
From: Wesley Cheng <wcheng@xxxxxxxxxxxxxx>
Date: Fri, 7 May 2021 10:55:19 -0700
Subject: usb: dwc3: gadget: Return success always for kick transfer in ep queue
From: Wesley Cheng <wcheng@xxxxxxxxxxxxxx>
commit 18ffa988dbae69cc6e9949cddd9606f6fe533894 upstream.
If an error is received when issuing a start or update transfer
command, the error handler will stop all active requests (including
the current USB request), and call dwc3_gadget_giveback() to notify
function drivers of the requests which have been stopped. Avoid
returning an error for kick transfer during EP queue, to remove
duplicate cleanup operations on the request being queued.
Fixes: 8d99087c2db8 ("usb: dwc3: gadget: Properly handle failed kick_transfer")
cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Wesley Cheng <wcheng@xxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/1620410119-24971-1-git-send-email-wcheng@xxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/dwc3/gadget.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1676,7 +1676,9 @@ static int __dwc3_gadget_ep_queue(struct
}
}
- return __dwc3_gadget_kick_transfer(dep);
+ __dwc3_gadget_kick_transfer(dep);
+
+ return 0;
}
static int dwc3_gadget_ep_queue(struct usb_ep *ep, struct usb_request *request,
Patches currently in stable-queue which might be from wcheng@xxxxxxxxxxxxxx are
queue-5.11/usb-dwc3-gadget-return-success-always-for-kick-transfer-in-ep-queue.patch
