linux-kernel - [f2fs-dev][PATCH 2/2] f2fs: fix to put root inode in error path of fill

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Date:	Fri, 25 Jul 2014 12:55:09 +0800
From:	Chao Yu <chao2.yu@...sung.com>
To:	Jaegeuk Kim <jaegeuk@...nel.org>,
	Changman Lee <cm224.lee@...sung.com>
Cc:	linux-f2fs-devel@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org
Subject: [f2fs-dev][PATCH 2/2] 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@...sung.com>
---
 fs/f2fs/super.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 870fe19..34649aa 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 */
-- 
2.0.1.474.g72c7794


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