gtk-demo: Fix a crash in the puzzle

Avoid a crash when clicking the refresh button
after solving the puzzle.

diff --git a/demos/gtk-demo/sliding_puzzle.c b/demos/gtk-demo/sliding_puzzle.c
index 925d9817642b75559124c494f015ffe4c5fdce76..c7897f2dfdb02ebbebb005f589f3a520a56fe069 100644 (file)
--- a/demos/gtk-demo/sliding_puzzle.c
+++ b/demos/gtk-demo/sliding_puzzle.c
@@ -355,11 +355,16 @@ reshuffle (void)
 {
   GtkWidget *grid;
 
-  grid = gtk_aspect_frame_get_child (GTK_ASPECT_FRAME (frame));
   if (solved)
-    start_puzzle (puzzle);
+    {
+      start_puzzle (puzzle);
+      grid = gtk_aspect_frame_get_child (GTK_ASPECT_FRAME (frame));
+    }
   else
-    shuffle_puzzle (grid);
+    {
+      grid = gtk_aspect_frame_get_child (GTK_ASPECT_FRAME (frame));
+      shuffle_puzzle (grid);
+    }
   gtk_widget_grab_focus (grid);
 }