From b02b941bd87bd80d7f573289f6b961d1a1f00167 Mon Sep 17 00:00:00 2001
From: eap <eap@opencascade.com>
Date: Wed, 10 Oct 2012 10:44:55 +0000
Subject: [PATCH] protect GetSubShapeByNode() from SIGSEGV at NULL node

---
 src/SMESH/SMESH_MesherHelper.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/SMESH/SMESH_MesherHelper.cxx b/src/SMESH/SMESH_MesherHelper.cxx
index ffca47e6a..60d202870 100644
--- a/src/SMESH/SMESH_MesherHelper.cxx
+++ b/src/SMESH/SMESH_MesherHelper.cxx
@@ -329,7 +329,7 @@ bool SMESH_MesherHelper::IsMedium(const SMDS_MeshNode*      node,
 TopoDS_Shape SMESH_MesherHelper::GetSubShapeByNode(const SMDS_MeshNode* node,
                                                    const SMESHDS_Mesh*  meshDS)
 {
-  int shapeID = node->getshapeId();
+  int shapeID = node ? node->getshapeId() : 0;
   if ( 0 < shapeID && shapeID <= meshDS->MaxShapeIndex() )
     return meshDS->IndexToShape( shapeID );
   else