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 e98071a..0133af4 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -95,10 +95,10 @@
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)