diff --git a/fs/ocfs2/slot_map.c b/fs/ocfs2/slot_map.c
index bfbd7e9e..ab4e017 100644
--- a/fs/ocfs2/slot_map.c
+++ b/fs/ocfs2/slot_map.c
@@ -357,7 +357,7 @@
 {
 	int status = 0;
 	u64 blkno;
-	unsigned long long blocks, bytes;
+	unsigned long long blocks, bytes = 0;
 	unsigned int i;
 	struct buffer_head *bh;