Don't destroy NULL region

diff --git a/gdk/gdkwindow.c b/gdk/gdkwindow.c
index ca5d30b00fe8305ad09c0ad0bd6740529b75246a..227d8b685bc3e62abe1f92ed3b8026ba6f83ac38 100644 (file)
--- a/gdk/gdkwindow.c
+++ b/gdk/gdkwindow.c
@@ -6311,7 +6311,8 @@ gdk_window_shape_combine_mask (GdkWindow *window,
                                   region,
                                   x, y);
 
-  gdk_region_destroy (region);
+  if (region)
+    gdk_region_destroy (region);
 }
 
 /**