From: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Date: Mon, 11 Jan 2010 18:36:57 +0000 (+0900)
Subject: GFS2: Fix refcnt leak on gfs2_follow_link() error path
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=0f585f14d4e34ab701283e9237ac7695cd7c9e31;p=linux-beck.git

GFS2: Fix refcnt leak on gfs2_follow_link() error path

If ->follow_link handler return the error, it should decrement
nd->path refcnt.

This patch fix it.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
---

diff --git a/fs/gfs2/ops_inode.c b/fs/gfs2/ops_inode.c
index 78f73ca1ef3e..84350e1be66d 100644
--- a/fs/gfs2/ops_inode.c
+++ b/fs/gfs2/ops_inode.c
@@ -1088,7 +1088,8 @@ static void *gfs2_follow_link(struct dentry *dentry, struct nameidata *nd)
 		error = vfs_follow_link(nd, buf);
 		if (buf != array)
 			kfree(buf);
-	}
+	} else
+		path_put(&nd->path);
 
 	return ERR_PTR(error);
 }