inspector: Don't unref NULL objects

When closing the application window before closing the inspector window,
the selected widget will be set to NULL once and all the property pages
will try to g_object_weak_unref that NULL widget, so bail out in
gtk_inspector_prop_list_set_object if it's NULL.

https://bugzilla.gnome.org/show_bug.cgi?id=736201

diff --git a/gtk/inspector/prop-list.c b/gtk/inspector/prop-list.c
index c28e16ed02785cc9f0dd7c411a254486f646ded2..707e4a234c710f1ac5eabb3277c5d509587a8502 100644 (file)
--- a/gtk/inspector/prop-list.c
+++ b/gtk/inspector/prop-list.c
@@ -334,7 +334,7 @@ gtk_inspector_prop_list_set_object (GtkInspectorPropList *pl,
   guint num_properties;
   guint i;
 
-  if (pl->priv->object == object)
+  if (pl->priv->object == object || !object)
     return FALSE;
 
   cleanup_object (pl);