usb: gadget: mv_u3d: mv_u3d_start_queue() refactoring
The patch improves readability of mv_u3d_start_queue() by rearranging its code with two semantic modifications: - assignment zero to ep->processing if usb_gadget_map_request() fails; - propagation of error code from mv_u3d_req_to_trb() instead of hardcoded -ENOMEM. Signed-off-by: NAlexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: NFelipe Balbi <felipe.balbi@linux.intel.com>
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