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fs/affs: release old buffer head on error path

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The reference count of the old buffer head should be decremented on path
that fails to get the new buffer head.

Fixes: 6b4657667ba0 ("fs/affs: add rename exchange")
CC: stable@vger.kernel.org # 4.14+
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Pan Bian 2021-01-20 00:51:13 -08:00 committed by David Sterba
parent 92bf22614b
commit 70779b8973
1 changed files with 3 additions and 1 deletions
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4
fs/affs/namei.c
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@ -460,8 +460,10 @@ affs_xrename(struct inode *old_dir, struct dentry *old_dentry,
return -EIO;
bh_new = affs_bread(sb, d_inode(new_dentry)->i_ino);
if (!bh_new)
if (!bh_new) {
affs_brelse(bh_old);
return -EIO;
}
/* Remove old header from its parent directory. */
affs_lock_dir(old_dir);