diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index 65a218eba8fa..937a7fae0e31 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -1448,7 +1448,7 @@ static int jfs_mknod(struct mnt_idmap *idmap, struct inode *dir,
 
 static struct dentry *jfs_lookup(struct inode *dip, struct dentry *dentry, unsigned int flags)
 {
-	struct btstack btstack;
+	struct btstack btstack = {0};
 	ino_t inum;
 	struct inode *ip;
 	struct component_name key;