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()
606 	retval = q->ops->buf_prepare(q, buf, field);  in videobuf_qbuf()
607 	if (0 != retval) {  in videobuf_qbuf()
608 		dprintk(1, "qbuf: buffer_prepare returned %d\n", retval);  in videobuf_qbuf()
619 	retval = 0;  in videobuf_qbuf()
628 	return retval;  in videobuf_qbuf()
635 	int retval;  in stream_next_buffer_check_queue()  local
640 		retval = -EINVAL;  in stream_next_buffer_check_queue()
646 			retval = -EAGAIN;  in stream_next_buffer_check_queue()
658 			retval = wait_event_interruptible(q->wait,  in stream_next_buffer_check_queue()
662 			if (retval)  in stream_next_buffer_check_queue()
669 	retval = 0;  in stream_next_buffer_check_queue()
672 	return retval;  in stream_next_buffer_check_queue()
679 	int retval;  in stream_next_buffer()  local
682 	retval = stream_next_buffer_check_queue(q, nonblocking);  in stream_next_buffer()
683 	if (retval)  in stream_next_buffer()
687 	retval = videobuf_waiton(q, buf, nonblocking, 1);  in stream_next_buffer()
688 	if (retval < 0)  in stream_next_buffer()
693 	return retval;  in stream_next_buffer()
700 	int retval;  in videobuf_dqbuf()  local
707 	retval = stream_next_buffer(q, &buf, nonblocking);  in videobuf_dqbuf()
708 	if (retval < 0) {  in videobuf_dqbuf()
709 		dprintk(1, "dqbuf: next_buffer error: %i\n", retval);  in videobuf_dqbuf()
722 		retval = -EINVAL;  in videobuf_dqbuf()
732 	return retval;  in videobuf_dqbuf()
740 	int retval;  in videobuf_streamon()  local
743 	retval = -EBUSY;  in videobuf_streamon()
746 	retval = 0;  in videobuf_streamon()
759 	return retval;  in videobuf_streamon()
776 	int retval;  in videobuf_streamoff()  local
779 	retval = __videobuf_streamoff(q);  in videobuf_streamoff()
782 	return retval;  in videobuf_streamoff()
793 	int retval;  in videobuf_read_zerocopy()  local
807 	retval = q->ops->buf_prepare(q, q->read_buf, field);  in videobuf_read_zerocopy()
808 	if (0 != retval)  in videobuf_read_zerocopy()
815 	retval = videobuf_waiton(q, q->read_buf, 0, 0);  in videobuf_read_zerocopy()
816 	if (0 == retval) {  in videobuf_read_zerocopy()
819 			retval = -EIO;  in videobuf_read_zerocopy()
821 			retval = q->read_buf->size;  in videobuf_read_zerocopy()
829 	return retval;  in videobuf_read_zerocopy()
882 	int retval;  in videobuf_read_one()  local
893 		retval = videobuf_read_zerocopy(q, data, count, ppos);  in videobuf_read_one()
894 		if (retval >= 0  ||  retval == -EIO)  in videobuf_read_one()
902 		retval = -ENOMEM;  in videobuf_read_one()
911 		retval = q->ops->buf_prepare(q, q->read_buf, field);  in videobuf_read_one()
913 		if (0 != retval) {  in videobuf_read_one()
927 	retval = videobuf_waiton(q, q->read_buf, nonblocking, 1);  in videobuf_read_one()
928 	if (0 != retval)  in videobuf_read_one()
938 		retval = -EIO;  in videobuf_read_one()
943 	retval = __videobuf_copy_to_user(q, q->read_buf, data, count, nonblocking);  in videobuf_read_one()
944 	if (retval < 0)  in videobuf_read_one()
947 	q->read_off += retval;  in videobuf_read_one()
957 	return retval;  in videobuf_read_one()
1051 	int rc, retval;  in videobuf_read_stream()  local
1058 	retval = -EBUSY;  in videobuf_read_stream()
1062 		retval = __videobuf_read_start(q);  in videobuf_read_stream()
1063 		if (retval < 0)  in videobuf_read_stream()
1067 	retval = 0;  in videobuf_read_stream()
1079 			if (0 == retval)  in videobuf_read_stream()
1080 				retval = rc;  in videobuf_read_stream()
1085 			rc = __videobuf_copy_stream(q, q->read_buf, data + retval, count,  in videobuf_read_stream()
1086 					retval, vbihack, nonblocking);  in videobuf_read_stream()
1088 				retval = rc;  in videobuf_read_stream()
1091 			retval      += rc;  in videobuf_read_stream()
1097 			if (0 == retval)  in videobuf_read_stream()
1098 				retval = -EIO;  in videobuf_read_stream()
1110 		if (retval < 0)  in videobuf_read_stream()
1116 	return retval;  in videobuf_read_stream()