444 	int retval;  in videobuf_reqbufs()  local
456 		retval = -EINVAL;  in videobuf_reqbufs()
462 		retval = -EBUSY;  in videobuf_reqbufs()
467 		retval = -EBUSY;  in videobuf_reqbufs()
473 		retval = __videobuf_free(q);  in videobuf_reqbufs()
486 	retval = __videobuf_mmap_setup(q, count, size, req->memory);  in videobuf_reqbufs()
487 	if (retval < 0) {  in videobuf_reqbufs()
488 		dprintk(1, "reqbufs: mmap setup returned %d\n", retval);  in videobuf_reqbufs()
492 	req->count = retval;  in videobuf_reqbufs()
493 	retval = 0;  in videobuf_reqbufs()
497 	return retval;  in videobuf_reqbufs()
533 	int retval;  in videobuf_qbuf()  local
541 	retval = -EBUSY;  in videobuf_qbuf()
546 	retval = -EINVAL;  in videobuf_qbuf()
605 	retval = q->ops->buf_prepare(q, buf, field);  in videobuf_qbuf()
606 	if (0 != retval) {  in videobuf_qbuf()
607 		dprintk(1, "qbuf: buffer_prepare returned %d\n", retval);  in videobuf_qbuf()
618 	retval = 0;  in videobuf_qbuf()
627 	return retval;  in videobuf_qbuf()
634 	int retval;  in stream_next_buffer_check_queue()  local
639 		retval = -EINVAL;  in stream_next_buffer_check_queue()
645 			retval = -EAGAIN;  in stream_next_buffer_check_queue()
657 			retval = wait_event_interruptible(q->wait,  in stream_next_buffer_check_queue()
661 			if (retval)  in stream_next_buffer_check_queue()
668 	retval = 0;  in stream_next_buffer_check_queue()
671 	return retval;  in stream_next_buffer_check_queue()
678 	int retval;  in stream_next_buffer()  local
681 	retval = stream_next_buffer_check_queue(q, nonblocking);  in stream_next_buffer()
682 	if (retval)  in stream_next_buffer()
686 	retval = videobuf_waiton(q, buf, nonblocking, 1);  in stream_next_buffer()
687 	if (retval < 0)  in stream_next_buffer()
692 	return retval;  in stream_next_buffer()
699 	int retval;  in videobuf_dqbuf()  local
706 	retval = stream_next_buffer(q, &buf, nonblocking);  in videobuf_dqbuf()
707 	if (retval < 0) {  in videobuf_dqbuf()
708 		dprintk(1, "dqbuf: next_buffer error: %i\n", retval);  in videobuf_dqbuf()
721 		retval = -EINVAL;  in videobuf_dqbuf()
731 	return retval;  in videobuf_dqbuf()
739 	int retval;  in videobuf_streamon()  local
742 	retval = -EBUSY;  in videobuf_streamon()
745 	retval = 0;  in videobuf_streamon()
758 	return retval;  in videobuf_streamon()
775 	int retval;  in videobuf_streamoff()  local
778 	retval = __videobuf_streamoff(q);  in videobuf_streamoff()
781 	return retval;  in videobuf_streamoff()
792 	int retval;  in videobuf_read_zerocopy()  local
806 	retval = q->ops->buf_prepare(q, q->read_buf, field);  in videobuf_read_zerocopy()
807 	if (0 != retval)  in videobuf_read_zerocopy()
814 	retval = videobuf_waiton(q, q->read_buf, 0, 0);  in videobuf_read_zerocopy()
815 	if (0 == retval) {  in videobuf_read_zerocopy()
818 			retval = -EIO;  in videobuf_read_zerocopy()
820 			retval = q->read_buf->size;  in videobuf_read_zerocopy()
828 	return retval;  in videobuf_read_zerocopy()
881 	int retval;  in videobuf_read_one()  local
892 		retval = videobuf_read_zerocopy(q, data, count, ppos);  in videobuf_read_one()
893 		if (retval >= 0  ||  retval == -EIO)  in videobuf_read_one()
901 		retval = -ENOMEM;  in videobuf_read_one()
910 		retval = q->ops->buf_prepare(q, q->read_buf, field);  in videobuf_read_one()
912 		if (0 != retval) {  in videobuf_read_one()
926 	retval = videobuf_waiton(q, q->read_buf, nonblocking, 1);  in videobuf_read_one()
927 	if (0 != retval)  in videobuf_read_one()
937 		retval = -EIO;  in videobuf_read_one()
942 	retval = __videobuf_copy_to_user(q, q->read_buf, data, count, nonblocking);  in videobuf_read_one()
943 	if (retval < 0)  in videobuf_read_one()
946 	q->read_off += retval;  in videobuf_read_one()
956 	return retval;  in videobuf_read_one()
1050 	int rc, retval;  in videobuf_read_stream()  local
1057 	retval = -EBUSY;  in videobuf_read_stream()
1061 		retval = __videobuf_read_start(q);  in videobuf_read_stream()
1062 		if (retval < 0)  in videobuf_read_stream()
1066 	retval = 0;  in videobuf_read_stream()
1078 			if (0 == retval)  in videobuf_read_stream()
1079 				retval = rc;  in videobuf_read_stream()
1084 			rc = __videobuf_copy_stream(q, q->read_buf, data + retval, count,  in videobuf_read_stream()
1085 					retval, vbihack, nonblocking);  in videobuf_read_stream()
1087 				retval = rc;  in videobuf_read_stream()
1090 			retval      += rc;  in videobuf_read_stream()
1096 			if (0 == retval)  in videobuf_read_stream()
1097 				retval = -EIO;  in videobuf_read_stream()
1109 		if (retval < 0)  in videobuf_read_stream()
1115 	return retval;  in videobuf_read_stream()