[mutter] backend: Fix build

[Jasper St. Pierre <jstpierre src gnome org>]

commit 3f1f1645c7bf04390208ddbb9fe251c7e6392e43
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Thu Sep 4 13:15:03 2014 -0700

    backend: Fix build
    
    I keep forgetting to squash.

 src/backends/meta-backend.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/backends/meta-backend.c b/src/backends/meta-backend.c
index ba5580b..7c689c2 100644
--- a/src/backends/meta-backend.c
+++ b/src/backends/meta-backend.c
@@ -175,7 +175,7 @@ meta_backend_real_post_init (MetaBackend *backend)
     GSList *devices, *l;
 
     /* Create the core device monitor. */
-    create_device_monitor (manager, 0);
+    create_device_monitor (backend, 0);
 
     manager = clutter_device_manager_get_default ();
     g_signal_connect_object (manager, "device-added",