--- src/sys/contrib/dev/acpica/nsxfname.c.orig  2010-11-14 20:51:57.000000000 +0100
+++ src/sys/contrib/dev/acpica/nsxfname.c       2010-11-14 20:50:46.000000000 +0100
@@ -361,6 +361,7 @@
     if (!Node)
     {
         (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
+        Status = AE_BAD_PARAMETER;
         goto Cleanup;
     }