diff -r 5dc02b23752f -r 3e2da88830cd src/gui/embedded/qwsmanager_qws.cpp
--- a/src/gui/embedded/qwsmanager_qws.cpp	Tue Jul 06 15:10:48 2010 +0300
+++ b/src/gui/embedded/qwsmanager_qws.cpp	Wed Aug 18 10:37:55 2010 +0300
@@ -394,7 +394,7 @@
                                     const QRegion &clip)
 {
     QTLWExtra *topextra = managed->d_func()->extra->topextra;
-    QWidgetBackingStore *bs = topextra->backingStore;
+    QWidgetBackingStore *bs = topextra->backingStore.data();
     const bool pendingUpdateRequest = bs->isDirty();
 
     if (decorationRegion == QDecoration::All) {