gdkwindow: Fix list_insert_link_before

We forgot to set prev->next to the new link

diff --git a/gdk/gdkwindow.c b/gdk/gdkwindow.c
index 89ed898c84b01c501033c5813b547f7515f5f677..2f7ee2dcba3046cfda4d6c75c7ecfb380adb1ec1 100644 (file)
--- a/gdk/gdkwindow.c
+++ b/gdk/gdkwindow.c
@@ -267,6 +267,9 @@ list_insert_link_before (GList *list,
       link->prev = sibling->prev;
       sibling->prev = link;
 
+      if (link->prev)
+        link->prev->next = link;
+
       return list;
     }
 }