This is a note to let you know that I've just added the patch titled
usb: gadget: uvc: Fix error handling in uvc_queue_buffer()
to the 3.11-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-gadget-uvc-fix-error-handling-in-uvc_queue_buffer.patch
and it can be found in the queue-3.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From ebe864a6cb8e087ede047fa1fa6b6d06fcb9a9e4 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Date: Mon, 29 Apr 2013 22:18:01 +0200
Subject: usb: gadget: uvc: Fix error handling in uvc_queue_buffer()
From: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
commit ebe864a6cb8e087ede047fa1fa6b6d06fcb9a9e4 upstream.
The conversion to videobuf2 failed to check the return value of
vb2_qbuf(). Fix it.
Reported-by: Michael Grzeschik <mgr@xxxxxxxxxxxxxx>
Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Tested-By: Michael Grzeschik <mgr@xxxxxxxxxxxxxx>
Signed-off-by: Felipe Balbi <balbi@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/gadget/uvc_queue.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/usb/gadget/uvc_queue.c
+++ b/drivers/usb/gadget/uvc_queue.c
@@ -193,12 +193,16 @@ static int uvc_queue_buffer(struct uvc_v
mutex_lock(&queue->mutex);
ret = vb2_qbuf(&queue->queue, buf);
+ if (ret < 0)
+ goto done;
+
spin_lock_irqsave(&queue->irqlock, flags);
ret = (queue->flags & UVC_QUEUE_PAUSED) != 0;
queue->flags &= ~UVC_QUEUE_PAUSED;
spin_unlock_irqrestore(&queue->irqlock, flags);
- mutex_unlock(&queue->mutex);
+done:
+ mutex_unlock(&queue->mutex);
return ret;
}
Patches currently in stable-queue which might be from laurent.pinchart@xxxxxxxxxxxxxxxx are
queue-3.11/usb-gadget-uvc-fix-error-handling-in-uvc_queue_buffer.patch
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