From ff38281aa1a7576df9e67ac756e7e1087681305e Mon Sep 17 00:00:00 2001
From: Julian Smart <julian@anthemion.co.uk>
Date: Fri, 9 May 2003 21:48:24 +0000
Subject: [PATCH] Fixed crash in EnsureVisible in wxTR_HIDE_ROOT mode

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@20566 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/generic/treectlg.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/generic/treectlg.cpp b/src/generic/treectlg.cpp
index f0be2d8723..f2134ffc89 100644
--- a/src/generic/treectlg.cpp
+++ b/src/generic/treectlg.cpp
@@ -1884,7 +1884,7 @@ void wxGenericTreeCtrl::EnsureVisible(const wxTreeItemId& item)
 
     if ( HasFlag(wxTR_HIDE_ROOT) )
     {
-        while ( parent != m_anchor )
+        while ( parent && parent != m_anchor )
         {
             Expand(parent);
             parent = parent->GetParent();
-- 
2.47.2