vfs: fix dentry leak in simple_fill_super()

put dentry if inode allocation failed, d_genocide() cannot release it

Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>

1 files changed, 3 insertions, 1 deletions

diff --git a/fs/libfs.c b/fs/libfs.c
index c18e9a1235b..a2c0029cd95 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -510,8 +510,10 @@ int simple_fill_super(struct super_block *s, unsigned long magic,
                 if (!dentry)
                         goto out;
                 inode = new_inode(s);
-                if (!inode)
+                if (!inode) {
+                        dput(dentry);
                         goto out;
+                }
                 inode->i_mode = S_IFREG | files->mode;
                 inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
                 inode->i_fop = files->ops;