diff -r c7c67a1a7077 xen/common/domctl.c
--- a/xen/common/domctl.c	Thu Apr 19 21:06:29 2007 +0100
+++ b/xen/common/domctl.c	Fri Apr 20 14:30:31 2007 -0400
@@ -301,8 +305,10 @@ long do_domctl(XEN_GUEST_HANDLE(xen_domc
         unsigned int domcr_flags;
 
         if ( supervisor_mode_kernel ||
-             (op->u.createdomain.flags & ~XEN_DOMCTL_CDF_hvm_guest) )
-            return -EINVAL;
+             (op->u.createdomain.flags & ~XEN_DOMCTL_CDF_hvm_guest) ) {
+            ret = -EINVAL;
+            break;
+        }
 
         dom = op->domain;
         if ( (dom > 0) && (dom < DOMID_FIRST_RESERVED) )