Fix stack corruption. Thanks to Waxdragon and the fact he uses an -O2 build (hint hint nudge nudge)

Modified: trunk/reactos/ntoskrnl/ex/work.c

--- trunk/reactos/ntoskrnl/ex/work.c	2006-01-05 04:26:55 UTC (rev 20568)
+++ trunk/reactos/ntoskrnl/ex/work.c	2006-01-05 06:24:07 UTC (rev 20569)
@@ -425,7 +425,7 @@

     KTIMER Timer;
     LARGE_INTEGER Timeout;
     NTSTATUS Status;

-    PVOID WaitEvents[2];

+    PVOID WaitEvents[3];

     PAGED_CODE();
     UNREFERENCED_PARAMETER(Context);