From c27e129345c1fd4e2e7f1bcf15fc4a255deabd53 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lubo=C5=A1=20Lu=C5=88=C3=A1k?= <l.lunak@kde.org>
Date: Thu, 24 Jan 2008 15:14:13 +0000
Subject: [PATCH] Don't crash. BUG: 156055

svn path=/trunk/KDE/kdebase/workspace/; revision=765710
---
 effects/taskbarthumbnail.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/effects/taskbarthumbnail.cpp b/effects/taskbarthumbnail.cpp
index 1dd51219e4..707cc46227 100644
--- a/effects/taskbarthumbnail.cpp
+++ b/effects/taskbarthumbnail.cpp
@@ -70,6 +70,8 @@ void TaskbarThumbnailEffect::paintWindow( EffectWindow* w, int mask, QRegion reg
         foreach( const Data thumb, thumbnails.values( w ))
             {
             EffectWindow* thumbw = effects->findWindow( thumb.window );
+            if( thumbw == NULL )
+                continue;
             WindowPaintData data( thumbw );
             QRect r;
             setPositionTransformations( data, r,