File 4_1_BRANCH_r891650.diff of Package kdelibs4

--- kio/kio/kdirmodel.cpp.orig	2009-01-08 00:20:45.000000000 +0000
+++ kio/kio/kdirmodel.cpp	2009-01-08 00:21:54.000000000 +0000
@@ -674,7 +674,11 @@
 
 int KDirModel::rowCount( const QModelIndex & parent ) const
 {
-    KDirModelDirNode* parentNode = static_cast<KDirModelDirNode *>(d->nodeForIndex(parent));
+    KDirModelNode* node = d->nodeForIndex(parent);
+    if (!node || !d->isDir(node)) // #176555
+        return 0;
+
+    KDirModelDirNode* parentNode = static_cast<KDirModelDirNode *>(node);
     Q_ASSERT(parentNode);
     const int count = parentNode->m_childNodes.count();
 #if 0