From: Thomas Renninger <trenn@suse.de>
Date: Wed, 30 Jul 2008 05:32:59 +0000 (-0700)
Subject: acpi cpufreq cleanup: move bailing out of function before locking the mutex
X-Git-Tag: v2.6.27-rc2~201
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9b67c5d48f104aae6118bbb052dd79a15ab9794b;p=linux-2.6

acpi cpufreq cleanup: move bailing out of function before locking the mutex

Signed-off-by: Thomas Renninger <trenn@suse.de>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Len Brown <lenb@kernel.org>
Cc: Dave Jones <davej@codemonkey.org.uk>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index e98071a648..0133af49cf 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -95,10 +95,10 @@ static int acpi_processor_ppc_notifier(struct notifier_block *nb,
 	if (ignore_ppc)
 		return 0;
 
-	mutex_lock(&performance_mutex);
-
 	if (event != CPUFREQ_INCOMPATIBLE)
-		goto out;
+		return 0;
+
+	mutex_lock(&performance_mutex);
 
 	pr = per_cpu(processors, policy->cpu);
 	if (!pr || !pr->performance)