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vfs: fix d_inode_lookup() dentry ref leak

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d_inode_lookup() leaks a dentry reference on IS_DEADDIR().

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
CC: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Miklos Szeredi 2012-02-03 14:25:18 +01:00 committed by Al Viro
parent 3b582f3931
commit e188dc02d3
1 changed files with 3 additions and 1 deletions
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4
fs/namei.c
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@ -1095,8 +1095,10 @@ static struct dentry *d_inode_lookup(struct dentry *parent, struct dentry *dentr
struct dentry *old;
/* Don't create child dentry for a dead directory. */
if (unlikely(IS_DEADDIR(inode)))
if (unlikely(IS_DEADDIR(inode))) {
dput(dentry);
return ERR_PTR(-ENOENT);
}
old = inode->i_op->lookup(inode, dentry, nd);
if (unlikely(old)) {