From ada652802db80202090fe55915d0b6ce648de59f Mon Sep 17 00:00:00 2001
From: Noel Grandin <noel@peralex.com>
Date: Fri, 25 Sep 2020 09:26:31 +0200
Subject: [PATCH] tdf#137008 mml crash on load

Change-Id: I1d35f1b6cb7234850c6847b19848be186f2e1955
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/103370
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
---
 starmath/source/visitors.cxx | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/starmath/source/visitors.cxx b/starmath/source/visitors.cxx
index 37a8fc7ab595..f4db5c10257f 100644
--- a/starmath/source/visitors.cxx
+++ b/starmath/source/visitors.cxx
@@ -2335,7 +2335,8 @@ void SmNodeToTextVisitor::Visit( SmMatrixNode* pNode )
         {
             SmNode* pSubNode = pNode->GetSubNode( i * pNode->GetNumCols( ) + j );
             Separate( );
-            pSubNode->Accept( this );
+            if (pSubNode)
+                pSubNode->Accept( this );
             Separate( );
             if (j != pNode->GetNumCols() - 1U)
                 Append( "#" );