Check for Request == NULL.

Modified: trunk/reactos/ntoskrnl/lpc/reply.c

--- trunk/reactos/ntoskrnl/lpc/reply.c	2005-09-02 11:29:40 UTC (rev 17603)
+++ trunk/reactos/ntoskrnl/lpc/reply.c	2005-09-02 13:12:44 UTC (rev 17604)
@@ -263,6 +263,12 @@

    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;