usb: gadget: uvc: Fix error handling in uvc_queue_buffer()
The conversion to videobuf2 failed to check the return value of vb2_qbuf(). Fix it. Cc: stable@vger.kernel.org Reported-by: Michael Grzeschik <mgr@pengutronix.de> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-By: Michael Grzeschik <mgr@pengutronix.de> Signed-off-by: Felipe Balbi <balbi@ti.com>
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