549 		struct usb_request *_req)  in langwell_free_request()  argument
559 	if (!_ep || !_req)  in langwell_free_request()
562 	req = container_of(_req, struct langwell_request, req);  in langwell_free_request()
565 	if (_req)  in langwell_free_request()
763 static int langwell_ep_queue(struct usb_ep *_ep, struct usb_request *_req,  in langwell_ep_queue()  argument
773 	req = container_of(_req, struct langwell_request, req);  in langwell_ep_queue()
776 	if (!_req || !_req->complete || !_req->buf  in langwell_ep_queue()
798 	if (_req->dma == DMA_ADDR_INVALID) {  in langwell_ep_queue()
800 		if (_req->length == 0) {  in langwell_ep_queue()
803 			_req->length++;  in langwell_ep_queue()
806 		_req->dma = dma_map_single(&dev->pdev->dev,  in langwell_ep_queue()
807 				_req->buf, _req->length,  in langwell_ep_queue()
809 		if (zlflag && (_req->length == 1)) {  in langwell_ep_queue()
812 			_req->length = 0;  in langwell_ep_queue()
819 				_req->dma, _req->length,  in langwell_ep_queue()
828 			_req, _req->length, _req->buf, (int)_req->dma);  in langwell_ep_queue()
830 	_req->status = -EINPROGRESS;  in langwell_ep_queue()
831 	_req->actual = 0;  in langwell_ep_queue()
861 static int langwell_ep_dequeue(struct usb_ep *_ep, struct usb_request *_req)  in langwell_ep_dequeue()  argument
874 	if (!_ep || !ep->desc || !_req)  in langwell_ep_dequeue()
897 		if (&req->req == _req)  in langwell_ep_dequeue()
901 	if (&req->req != _req) {  in langwell_ep_dequeue()
909 		_req->status = -ECONNRESET;  in langwell_ep_dequeue()