From: Chao Yu <chao2.yu@samsung.com>
Date: Fri, 25 Jul 2014 04:55:09 +0000 (+0800)
Subject: f2fs: fix to put root inode in error path of fill_super
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9d847950770da7102d4efc02d0939ce28e3a7dd0;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

f2fs: fix to put root inode in error path of fill_super

We should put root inode correctly in error path of fill_super, otherwise we
may encounter a leak case of inode resource.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Reviewed-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 870fe199bafb..34649aa66e04 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1033,8 +1033,9 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
 		goto free_node_inode;
 	}
 	if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) {
+		iput(root);
 		err = -EINVAL;
-		goto free_root_inode;
+		goto free_node_inode;
 	}
 
 	sb->s_root = d_make_root(root); /* allocate root dentry */