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From: Saravana Kannan <skannan@codeaurora.org>
To: "Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Viresh Kumar <viresh.kumar@linaro.org>
Cc: linux-pm@vger.kernel.org, cpufreq@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	"Saravana Kannan" <skannan@codeaurora.org>
Subject: [PATCH 1/3] cpufreq: stats: Remove redundant cpufreq_cpu_get() call
Date: Wed, 26 Feb 2014 12:17:36 -0800	[thread overview]
Message-ID: <1393445858-7062-1-git-send-email-skannan@codeaurora.org> (raw)

__cpufreq_stats_create_table always gets pass the valid and real policy
struct. So, there's no need to call cpufreq_cpu_get() to get the policy
again.

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
---
 drivers/cpufreq/cpufreq_stats.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index 5793e14..e4bd27f 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -185,7 +185,6 @@ static int __cpufreq_stats_create_table(struct cpufreq_policy *policy,
 {
 	unsigned int i, j, count = 0, ret = 0;
 	struct cpufreq_stats *stat;
-	struct cpufreq_policy *current_policy;
 	unsigned int alloc_size;
 	unsigned int cpu = policy->cpu;
 	if (per_cpu(cpufreq_stats_table, cpu))
@@ -194,13 +193,7 @@ static int __cpufreq_stats_create_table(struct cpufreq_policy *policy,
 	if ((stat) == NULL)
 		return -ENOMEM;
 
-	current_policy = cpufreq_cpu_get(cpu);
-	if (current_policy == NULL) {
-		ret = -EINVAL;
-		goto error_get_fail;
-	}
-
-	ret = sysfs_create_group(&current_policy->kobj, &stats_attr_group);
+	ret = sysfs_create_group(&policy->kobj, &stats_attr_group);
 	if (ret)
 		goto error_out;
 
@@ -243,11 +236,8 @@ static int __cpufreq_stats_create_table(struct cpufreq_policy *policy,
 	stat->last_time = get_jiffies_64();
 	stat->last_index = freq_table_get_index(stat, policy->cur);
 	spin_unlock(&cpufreq_stats_lock);
-	cpufreq_cpu_put(current_policy);
 	return 0;
 error_out:
-	cpufreq_cpu_put(current_policy);
-error_get_fail:
 	kfree(stat);
 	per_cpu(cpufreq_stats_table, cpu) = NULL;
 	return ret;
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation


             reply	other threads:[~2014-02-26 20:17 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-26 20:17 Saravana Kannan [this message]
  -- strict thread matches above, loose matches on Subject: below --
2014-02-25 22:41 [PATCH] cpufreq: Set policy to non-NULL only after all hotplug online work is done Rafael J. Wysocki
2014-02-26  3:38 ` [PATCH 1/3] cpufreq: stats: Remove redundant cpufreq_cpu_get() call Saravana Kannan
2014-02-26  5:06   ` Viresh Kumar
2014-02-26 20:04     ` Saravana Kannan

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