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| author | Viresh Kumar <viresh.kumar@linaro.org> | 2015-12-03 09:37:52 +0530 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-12-07 02:20:23 +0100 |
| commit | 5e4500d8dba16d88b528cf037566b84747ec23f0 (patch) | |
| tree | 32830a50e58f9e7cdba5e2e3a6662722fb53fd42 /drivers | |
| parent | affde5d06af1e39c2929e36a063e3912f02fc58f (diff) | |
| download | talos-obmc-linux-5e4500d8dba16d88b528cf037566b84747ec23f0.tar.gz talos-obmc-linux-5e4500d8dba16d88b528cf037566b84747ec23f0.zip | |
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/cpufreq/cpufreq_governor.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c index cdcb56a49b28..999e1f6addf9 100644 --- a/drivers/cpufreq/cpufreq_governor.c +++ b/drivers/cpufreq/cpufreq_governor.c @@ -287,6 +287,7 @@ static int alloc_common_dbs_info(struct cpufreq_policy *policy, for_each_cpu(j, policy->related_cpus) cdata->get_cpu_cdbs(j)->shared = shared; + mutex_init(&shared->timer_mutex); return 0; } @@ -297,6 +298,8 @@ static void free_common_dbs_info(struct cpufreq_policy *policy, struct cpu_common_dbs_info *shared = cdbs->shared; int j; + mutex_destroy(&shared->timer_mutex); + for_each_cpu(j, policy->cpus) cdata->get_cpu_cdbs(j)->shared = NULL; @@ -433,7 +436,6 @@ static int cpufreq_governor_start(struct cpufreq_policy *policy, shared->policy = policy; shared->time_stamp = ktime_get(); - mutex_init(&shared->timer_mutex); for_each_cpu(j, policy->cpus) { struct cpu_dbs_info *j_cdbs = cdata->get_cpu_cdbs(j); @@ -493,8 +495,6 @@ static int cpufreq_governor_stop(struct cpufreq_policy *policy, mutex_unlock(&shared->timer_mutex); gov_cancel_work(dbs_data, policy); - - mutex_destroy(&shared->timer_mutex); return 0; } |
