From cea6a9e77228c261191bc92df0d24bf5356b99ff Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Sun, 7 Feb 2016 16:25:02 +0100 Subject: [PATCH] cpufreq: governor: Symmetrize cpu_dbs_info initialization and cleanup Make the initialization of struct cpu_dbs_info objects in alloc_policy_dbs_info() and the code that cleans them up in free_policy_dbs_info() more symmetrical. In particular, set/clear the update_util.func field in those functions along with the policy_dbs field. Signed-off-by: Rafael J. Wysocki Acked-by: Viresh Kumar --- drivers/cpufreq/cpufreq_governor.c | 21 +++++++++++++-------- 1 file changed, 13 insertions(+), 8 deletions(-) diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c index 82e50dcf9feb..7c08d8360f72 100644 --- a/drivers/cpufreq/cpufreq_governor.c +++ b/drivers/cpufreq/cpufreq_governor.c @@ -304,14 +304,18 @@ static struct policy_dbs_info *alloc_policy_dbs_info(struct cpufreq_policy *poli if (!policy_dbs) return NULL; - /* Set policy_dbs for all CPUs, online+offline */ - for_each_cpu(j, policy->related_cpus) - gov->get_cpu_cdbs(j)->policy_dbs = policy_dbs; - mutex_init(&policy_dbs->timer_mutex); atomic_set(&policy_dbs->skip_work, 0); init_irq_work(&policy_dbs->irq_work, dbs_irq_work); INIT_WORK(&policy_dbs->work, dbs_work_handler); + + /* Set policy_dbs for all CPUs, online+offline */ + for_each_cpu(j, policy->related_cpus) { + struct cpu_dbs_info *j_cdbs = gov->get_cpu_cdbs(j); + + j_cdbs->policy_dbs = policy_dbs; + j_cdbs->update_util.func = dbs_update_util_handler; + } return policy_dbs; } @@ -324,9 +328,12 @@ static void free_policy_dbs_info(struct cpufreq_policy *policy, mutex_destroy(&policy_dbs->timer_mutex); - for_each_cpu(j, policy->cpus) - gov->get_cpu_cdbs(j)->policy_dbs = NULL; + for_each_cpu(j, policy->related_cpus) { + struct cpu_dbs_info *j_cdbs = gov->get_cpu_cdbs(j); + j_cdbs->policy_dbs = NULL; + j_cdbs->update_util.func = NULL; + } kfree(policy_dbs); } @@ -477,8 +484,6 @@ static int cpufreq_governor_start(struct cpufreq_policy *policy) if (ignore_nice) j_cdbs->prev_cpu_nice = kcpustat_cpu(j).cpustat[CPUTIME_NICE]; - - j_cdbs->update_util.func = dbs_update_util_handler; } policy_dbs->policy = policy; -- 2.20.1