commit: e188dc02d3a9c911be56eca5aa114fe7e9822d53
From: Miklos Szeredi <[email protected]>
Date: Fri, 3 Feb 2012 14:25:18 +0100
Subject: vfs: fix d_inode_lookup() dentry ref leak

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

Signed-off-by: Miklos Szeredi <[email protected]>
CC: [email protected]
Signed-off-by: Al Viro <[email protected]>
---
 fs/namei.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/fs/namei.c b/fs/namei.c
index 208c6aa..a780ea5 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -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)) {
-- 
1.7.3.4
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