scrollbar: Be more defensive

Somehow the scrollbar accessible manages to call
gtk_scrollbar_get_adjustment when priv->range is NULL.
Survive taht.

diff --git a/gtk/gtkscrollbar.c b/gtk/gtkscrollbar.c
index 97730e1eea47346dd15a13f757bfb89375a1bb01..84b18c02dc3d35e58584fb9ed36599fb2e9c8f9e 100644 (file)
--- a/gtk/gtkscrollbar.c
+++ b/gtk/gtkscrollbar.c
@@ -285,5 +285,8 @@ gtk_scrollbar_get_adjustment (GtkScrollbar  *self)
 
   g_return_val_if_fail (GTK_IS_SCROLLBAR (self), NULL);
 
-  return gtk_range_get_adjustment (GTK_RANGE (priv->range));
+  if (priv->range)
+    return gtk_range_get_adjustment (GTK_RANGE (priv->range));
+
+  return NULL;
 }