From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Jan Beulich" <JBeulich@novell.com>
Subject: [PATCH] linux: small ACPI processor external control
	code adjustments
Date: Tue, 16 Mar 2010 10:57:28 +0000
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- don't send a change notification to Xen before having sent an init
  one
- fix a bogus preprocessor directive

Signed-off-by: Jan Beulich <jbeulich@novell.com>

--- a/arch/i386/kernel/acpi/processor_extcntl_xen.c
+++ b/arch/i386/kernel/acpi/processor_extcntl_xen.c
@@ -117,6 +117,8 @@ static int xen_px_notifier(struct acpi_p
=20
 	perf =3D &op.u.set_pminfo.u.perf;
 	px =3D pr->performance;
+	if (!px)
+		return -EINVAL;
=20
 	switch(action) {
 	case PROCESSOR_PM_CHANGE:
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -141,7 +141,7 @@ int acpi_processor_ppc_has_changed(struc
 	else
 #ifdef CONFIG_CPU_FREQ
 		return cpufreq_update_policy(pr->id);
-#elif CONFIG_PROCESSOR_EXTERNAL_CONTROL
+#elif defined(CONFIG_PROCESSOR_EXTERNAL_CONTROL)
 		return processor_notify_external(pr,
 				PROCESSOR_PM_CHANGE, PM_TYPE_PERF);
 #endif