Thanks gge..
Modified: trunk/reactos/hal/hal/hal.c

Modified: trunk/reactos/hal/hal/hal.c
--- trunk/reactos/hal/hal/hal.c	2006-01-08 10:14:14 UTC (rev 20705)
+++ trunk/reactos/hal/hal/hal.c	2006-01-08 10:19:21 UTC (rev 20706)
@@ -133,6 +133,7 @@
   ULONG Unknown2)
 {
   UNIMPLEMENTED;
+  return NULL;
 }