combobox: fix a segfault

Don't dereference a NULL pointer.

diff --git a/gtk/gtkcombobox.c b/gtk/gtkcombobox.c
index c67912f6118818153a177dfd7d45f3e9e2734ea7..557160482ae3b6b3cc09b2209054b0b6545828cd 100644 (file)
--- a/gtk/gtkcombobox.c
+++ b/gtk/gtkcombobox.c
@@ -5602,11 +5602,11 @@ gtk_combo_box_get_preferred_height (GtkWidget *widget,
                                     gint      *minimum_size,
                                     gint      *natural_size)
 {
-  gint min_width;
+  gint min_width, nat_width;
 
   /* Combo box is height-for-width only
    * (so we always just reserve enough height for the minimum width) */
-  GTK_WIDGET_GET_CLASS (widget)->get_preferred_width (widget, &min_width, NULL);
+  GTK_WIDGET_GET_CLASS (widget)->get_preferred_width (widget, &min_width, &nat_width);
   GTK_WIDGET_GET_CLASS (widget)->get_preferred_height_for_width (widget, min_width, minimum_size, natural_size);
 }