Add missing unlocks to error paths of mountpoint_last.

Signed-off-by: Dave Jones <davej@fedoraproject.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 4 insertions, 1 deletions

diff --git a/fs/namei.c b/fs/namei.c
index 841c8d9286c0..0dc4cbf21f37 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -2261,12 +2261,15 @@ mountpoint_last(struct nameidata *nd, struct path *path)
                 dentry = d_alloc(dir, &nd->last);
                 if (!dentry) {
                         error = -ENOMEM;
+                        mutex_unlock(&dir->d_inode->i_mutex);
                         goto out;
                 }
                 dentry = lookup_real(dir->d_inode, dentry, nd->flags);
                 error = PTR_ERR(dentry);
-                if (IS_ERR(dentry))
+                if (IS_ERR(dentry)) {
+                        mutex_unlock(&dir->d_inode->i_mutex);
                         goto out;
+                }
         }
         mutex_unlock(&dir->d_inode->i_mutex);