security: remove dead hook sb_umount_busy

Unused hook.  Remove.

Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>

1 files changed, 0 insertions, 2 deletions

diff --git a/fs/namespace.c b/fs/namespace.c
index 8aea78c8e760..6c9ca7358aad 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1116,8 +1116,6 @@ static int do_umount(struct vfsmount *mnt, int flags)
                 retval = 0;
         }
         spin_unlock(&vfsmount_lock);
-        if (retval)
-                security_sb_umount_busy(mnt);
         up_write(&namespace_sem);
         release_mounts(&umount_list);
         return retval;