stylecontext: Fix list_classes() after optimization

Otherwise a junk value is returned.

diff --git a/gtk/gtkstylecontext.c b/gtk/gtkstylecontext.c
index 643a17b8965a673ceb2d703788d07532a6c0bcbb..ddc0d11a69dabefe67bdfe431035748e37a72e7d 100644 (file)
--- a/gtk/gtkstylecontext.c
+++ b/gtk/gtkstylecontext.c
@@ -1391,7 +1391,7 @@ GList *
 gtk_style_context_list_classes (GtkStyleContext *context)
 {
   GtkStyleContextPrivate *priv;
-  GList *classes_list;
+  GList *classes_list = NULL;
   const GQuark *classes;
   guint n_classes, i;
   const gchar *quark_str;