From c0a5256ea46beb2dfbeb56fab1933224fde7b3d1 Mon Sep 17 00:00:00 2001
From: Aleksey Bragin <aleksey@reactos.org>
Date: Thu, 6 Mar 2008 10:52:55 +0000
Subject: [PATCH] - Don't free buffers if they were not allocated.

svn path=/trunk/; revision=32580
---
 reactos/ntoskrnl/io/iomgr/drvrlist.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/reactos/ntoskrnl/io/iomgr/drvrlist.c b/reactos/ntoskrnl/io/iomgr/drvrlist.c
index c0670603e7d..dfdc2a3efe5 100644
--- a/reactos/ntoskrnl/io/iomgr/drvrlist.c
+++ b/reactos/ntoskrnl/io/iomgr/drvrlist.c
@@ -372,8 +372,10 @@ IoDestroyDriverList(VOID)
     {
       ExFreePool(CurrentService->ServiceName.Buffer);
       ExFreePool(CurrentService->RegistryPath.Buffer);
-      ExFreePool(CurrentService->ServiceGroup.Buffer);
-      ExFreePool(CurrentService->ImagePath.Buffer);
+      if (CurrentService->ServiceGroup.Buffer)
+        ExFreePool(CurrentService->ServiceGroup.Buffer);
+      if (CurrentService->ImagePath.Buffer)
+        ExFreePool(CurrentService->ImagePath.Buffer);
       RemoveEntryList(&CurrentService->ServiceListEntry);
       ExFreePool(CurrentService);
     }