linux-kernel - [PATCH] ntfs: avoid incorrectly release for root inode in fill

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Message-id: <002901cfa7af$c2024dc0$4606e940$@samsung.com>
Date:	Fri, 25 Jul 2014 10:25:10 +0800
From:	Chao Yu <chao2.yu@...sung.com>
To:	anton@...era.com
Cc:	linux-ntfs-dev@...ts.sourceforge.net, linux-kernel@...r.kernel.org
Subject: [PATCH] ntfs: avoid incorrectly release for root inode in fill_super

In d_make_root, when we fail to allocate dentry for root inode, we will iput
root inode in this function.
So we do not need to release this inode again at d_make_root's caller.

Signed-off-by: Chao Yu <chao2.yu@...sung.com>
---
 fs/ntfs/super.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c
index 6c3296e..99c5cc6 100644
--- a/fs/ntfs/super.c
+++ b/fs/ntfs/super.c
@@ -2975,7 +2975,11 @@ static int ntfs_fill_super(struct super_block *sb, void *opt, const int silent)
 			vol->secure_ino = NULL;
 		}
 	}
-	iput(vol->root_ino);
+
+	/*
+	 * Just set NULL value here because we have already iput root_ino
+	 * in d_make_root.
+	 */
 	vol->root_ino = NULL;
 	iput(vol->lcnbmp_ino);
 	vol->lcnbmp_ino = NULL;
-- 
2.0.1.474.g72c7794


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