Subject: Always return latest pmsts instead of the old one.

It may lead to the issue when booting windows guests with acpi=1
if return the old pmsts.

Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com>

Modified Paths:
--------------
    trunk/hw/acpi.c

Modified: trunk/hw/acpi.c
===================================================================

--- trunk/hw/acpi.c
+++ trunk/hw/acpi.c
@@ -92,7 +92,7 @@ static int get_pmsts(PIIX4PMState *s)
     d = muldiv64(qemu_get_clock(vm_clock), PM_FREQ, ticks_per_sec);
     if (d >= s->tmr_overflow_time)
         s->pmsts |= TMROF_EN;
-    return pmsts;
+    return s->pmsts;
 }
 
 static void pm_update_sci(PIIX4PMState *s)