$NetBSD: patch-ba,v 1.6 2010/11/15 13:05:45 adam Exp $

http://bugreports.qt.nokia.com/browse/QTBUG-6932

--- src/gui/graphicsview/qgraphicsitem_p.h.orig	2010-09-10 09:05:24.000000000 +0000
+++ src/gui/graphicsview/qgraphicsitem_p.h
@@ -762,7 +762,7 @@ inline bool qt_closestItemFirst(const QG
     // item1Ancestor is now at the same level as item2Ancestor, but not the same.
     const QGraphicsItem *p1 = t1;
     const QGraphicsItem *p2 = t2;
-    while (t1 && t1 != t2) {
+    while (t1 && t2 && t1 != t2) {
         p1 = t1;
         p2 = t2;
         t1 = t1->d_ptr->parent;