Prevent a segfault.

2005-11-04  Matthias Clasen  <mclasen@redhat.com>

        * xdgmime.c (xdg_mime_list_mime_parents): Prevent
        a segfault.

gtk/xdgmime/ChangeLog

@@ -1,3 +1,8 @@
+2005-11-04  Matthias Clasen  <mclasen@redhat.com>
+
+	* xdgmime.c (xdg_mime_list_mime_parents): Prevent
+	a segfault.
+
 2005-10-18  Matthias Clasen  <mclasen@redhat.com>
 
 	* xdgmimecache.c: Make magic comparisons work correctly

gtk/xdgmime/xdgmime.c

@@ -713,6 +713,10 @@ xdg_mime_list_mime_parents (const char *mime)
     return _xdg_mime_cache_list_mime_parents (mime);
 
   parents = xdg_mime_get_mime_parents (mime);
+
+  if (!parents)
+    return NULL;
+
   for (i = 0; parents[i]; i++) ;
   
   n = (i + 1) * sizeof (char *);