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cpufreq: governor: initialize/destroy timer_mutex with 'shared'
timer_mutex is required to be initialized only while memory for 'shared' is allocated and in a similar way it is required to be destroyed only when memory for 'shared' is freed. There is no need to do the same every time we start/stop the governor. Move code to initialize/destroy timer_mutex to the relevant places. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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1 changed files with 3 additions and 3 deletions
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@ -287,6 +287,7 @@ static int alloc_common_dbs_info(struct cpufreq_policy *policy,
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for_each_cpu(j, policy->related_cpus)
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cdata->get_cpu_cdbs(j)->shared = shared;
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mutex_init(&shared->timer_mutex);
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return 0;
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}
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@ -297,6 +298,8 @@ static void free_common_dbs_info(struct cpufreq_policy *policy,
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struct cpu_common_dbs_info *shared = cdbs->shared;
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int j;
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mutex_destroy(&shared->timer_mutex);
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for_each_cpu(j, policy->cpus)
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cdata->get_cpu_cdbs(j)->shared = NULL;
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@ -433,7 +436,6 @@ static int cpufreq_governor_start(struct cpufreq_policy *policy,
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shared->policy = policy;
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shared->time_stamp = ktime_get();
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mutex_init(&shared->timer_mutex);
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for_each_cpu(j, policy->cpus) {
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struct cpu_dbs_info *j_cdbs = cdata->get_cpu_cdbs(j);
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@ -493,8 +495,6 @@ static int cpufreq_governor_stop(struct cpufreq_policy *policy,
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mutex_unlock(&shared->timer_mutex);
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gov_cancel_work(dbs_data, policy);
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mutex_destroy(&shared->timer_mutex);
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return 0;
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}
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