From 0beccb3e1ef9ca5a074538527048cc64dca83298 Mon Sep 17 00:00:00 2001
From: Christoph von Wittich <christoph_vw@reactos.org>
Date: Wed, 21 Jan 2009 12:50:24 +0000
Subject: [PATCH] check for null (fixes ole32 compobj winetest crash)

svn path=/trunk/; revision=38992
---
 reactos/dll/win32/kernel32/file/deviceio.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/reactos/dll/win32/kernel32/file/deviceio.c b/reactos/dll/win32/kernel32/file/deviceio.c
index 670002d36aa..0d2c113c165 100644
--- a/reactos/dll/win32/kernel32/file/deviceio.c
+++ b/reactos/dll/win32/kernel32/file/deviceio.c
@@ -184,7 +184,9 @@ GetOverlappedResult (
     }
   }
 
-  *lpNumberOfBytesTransferred = lpOverlapped->InternalHigh;
+
+  if (lpNumberOfBytesTransferred)
+    *lpNumberOfBytesTransferred = lpOverlapped->InternalHigh;
 
   if (!NT_SUCCESS(lpOverlapped->Internal))
   {