diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 0f294ac31..f17251800 100755
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1470,7 +1470,7 @@ static inline unsigned int queue_io_min(const struct request_queue *q)
 	return q->limits.io_min;
 }
 
-static inline int bdev_io_min(struct block_device *bdev)
+static inline unsigned int bdev_io_min(struct block_device *bdev)
 {
 	return queue_io_min(bdev_get_queue(bdev));
 }