diff -r 2e8ad0c35792 xen/arch/x86/microcode_amd.c
--- a/xen/arch/x86/microcode_amd.c	Thu Sep 18 10:43:08 2008 +0100
+++ b/xen/arch/x86/microcode_amd.c	Mon Sep 22 11:51:03 2008 +0200
@@ -338,8 +338,7 @@ static int cpu_request_microcode(int cpu
          */
         if ( error == 1 )
         {
-            apply_microcode(cpu);
-            error = 0;
+            error = apply_microcode(cpu);
         }
         xfree(mc);
     }