From 2525c2ea6ab5890051347d9f1ddda5e7f9ad9ca3 Mon Sep 17 00:00:00 2001
From: Ged Murphy <gedmurphy@reactos.org>
Date: Wed, 5 Sep 2007 22:44:46 +0000
Subject: [PATCH] don't try to free a NULL pointer

svn path=/trunk/; revision=28888
---
 reactos/base/system/services/config.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/reactos/base/system/services/config.c b/reactos/base/system/services/config.c
index 9a95f56eceb..922a3967952 100644
--- a/reactos/base/system/services/config.c
+++ b/reactos/base/system/services/config.c
@@ -288,7 +288,8 @@ done:;
     if (dwError != ERROR_SUCCESS)
     {
         HeapFree(GetProcessHeap(), 0, ptr);
-        HeapFree(GetProcessHeap(), 0, expanded);
+        if (expanded)
+            HeapFree(GetProcessHeap(), 0, expanded);
     }
 
     return dwError;