I don't know whether this is a correct fix or not. Please check.
----------------------------------------
>From fa9c553a609cd2aa6703d733ced5e727896ac176 Mon Sep 17 00:00:00 2001
From: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>
Date: Thu, 16 Sep 2010 18:37:42 +0900
Subject: [PATCH] fs: Fix dentry leak at dentry_open().
dentry_open() says that it will have done dput(dentry) and mntput(mnt)
if it returns an error. But it was not calling dput(dentry) when mnt == NULL.
Signed-off-by: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>
---
fs/open.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/fs/open.c b/fs/open.c
index d74e198..501fda2 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -815,6 +815,7 @@ struct file *dentry_open(struct dentry *dentry, struct vfsmount *mnt, int flags,
if (!mnt) {
printk(KERN_WARNING "%s called with NULL vfsmount\n", __func__);
dump_stack();
+ dput(dentry);
return ERR_PTR(-EINVAL);
}
--
1.7.1
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