--- mutter-3.6.0/src/core/prefs.c.orig  2012-10-03 04:07:48.000000000 +0200
+++ mutter-3.6.0/src/core/prefs.c       2012-10-03 04:08:33.000000000 +0200
@@ -1664,7 +1664,7 @@
 void
 meta_prefs_set_num_workspaces (int n_workspaces)
 {
-  MetaBasePreference *pref;
+  MetaBasePreference *pref = NULL;

   find_pref (preferences_int, sizeof(MetaIntPreference),
              KEY_NUM_WORKSPACES, &pref);
@@ -2144,7 +2144,7 @@
 void
 meta_prefs_set_no_tab_popup (gboolean whether)
 {
-  MetaBasePreference *pref;
+  MetaBasePreference *pref = NULL;

   find_pref (preferences_bool, sizeof(MetaBoolPreference),
              KEY_NO_TAB_POPUP, &pref);