nilfs2: Remove an uninitialization warning in nilfs_btree_propagate_v()

`make CONFIG_NILFS2_FS=m M=fs/nilfs2/` will give the following warnings:

fs/nilfs2/btree.c: In function 'nilfs_btree_propagate':
fs/nilfs2/btree.c:1882: warning: 'maxlevel' may be used uninitialized in this function
fs/nilfs2/btree.c:1882: note: 'maxlevel' was declared here

Set maxlevel = 0 to fix it.

Signed-off-by: Li Hong <lihong.hi@gmail.com>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/nilfs2/btree.c b/fs/nilfs2/btree.c
index 7cdd98b8d51..76c38e3e19d 100644
--- a/fs/nilfs2/btree.c
+++ b/fs/nilfs2/btree.c
@@ -1879,7 +1879,7 @@ static int nilfs_btree_propagate_v(struct nilfs_btree *btree,
                                    struct nilfs_btree_path *path,
                                    int level, struct buffer_head *bh)
 {
-        int maxlevel, ret;
+        int maxlevel = 0, ret;
         struct nilfs_btree_node *parent;
         struct inode *dat = nilfs_bmap_get_dat(&btree->bt_bmap);
         __u64 ptr;