From d7a9771c1a37af8d0cd0cf97723aeea88b9de8bb Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Fri, 2 Jan 2015 12:34:33 +0530
Subject: cpufreq: use light-weight cpufreq_cpu_get_raw() in
 __cpufreq_add_dev()

We just need to check if a 'policy' is already present for the cpu we are
adding. We don't need to take all the locks and do kobject usage updates. Use
the light-weight cpufreq_cpu_get_raw() routine instead.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cpufreq.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

(limited to 'drivers/cpufreq')

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 127cc6f..3a41513 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1116,11 +1116,9 @@ static int __cpufreq_add_dev(struct device *dev, struct subsys_interface *sif)
 
 	/* check whether a different CPU already registered this
 	 * CPU because it is in the same boat. */
-	policy = cpufreq_cpu_get(cpu);
-	if (unlikely(policy)) {
-		cpufreq_cpu_put(policy);
+	policy = cpufreq_cpu_get_raw(cpu);
+	if (unlikely(policy))
 		return 0;
-	}
 
 	if (!down_read_trylock(&cpufreq_rwsem))
 		return 0;
-- 
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