From 02488d3f4963262b4cb49ae4ad4091fb3ae9fd36 Mon Sep 17 00:00:00 2001
From: Filip Navara <filip.navara@gmail.com>
Date: Fri, 2 Sep 2005 13:12:44 +0000
Subject: [PATCH] Check for Request == NULL.

svn path=/trunk/; revision=17604
---
 reactos/ntoskrnl/lpc/reply.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/reactos/ntoskrnl/lpc/reply.c b/reactos/ntoskrnl/lpc/reply.c
index ae42bb28c44..1aeba6e9acf 100644
--- a/reactos/ntoskrnl/lpc/reply.c
+++ b/reactos/ntoskrnl/lpc/reply.c
@@ -263,6 +263,12 @@ NtReplyWaitReceivePortEx(IN  HANDLE		PortHandle,
    Request = EiDequeueMessagePort(Port);
    KeReleaseSpinLock(&Port->Lock, oldIrql);
 
+   if (Request == NULL)
+     {
+       ObDereferenceObject(Port);
+       return STATUS_UNSUCCESSFUL;
+     }
+
    if (Request->Message.u2.s2.Type == LPC_CONNECTION_REQUEST)
      {
        PORT_MESSAGE Header;