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drivers base/arch_topology: free cpumask cpus_to_visit
Free cpumask cpus_to_visit in case registering init_cpu_capacity_notifier has failed or the parsing of the cpu capacity-dmips-mhz property is done. The cpumask cpus_to_visit is only used inside the notifier call init_cpu_capacity_callback. Reported-by: Vincent Guittot <vincent.guittot@linaro.org> Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com> Acked-by: Vincent Guittot <vincent.guittot@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Tested-by: Juri Lelli <juri.lelli@arm.com> Reviewed-by: Juri Lelli <juri.lelli@arm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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9e66317d3c
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1 changed files with 10 additions and 2 deletions
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@ -212,6 +212,8 @@ static struct notifier_block init_cpu_capacity_notifier = {
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static int __init register_cpufreq_notifier(void)
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{
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int ret;
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/*
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* on ACPI-based systems we need to use the default cpu capacity
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* until we have the necessary code to parse the cpu capacity, so
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@ -227,8 +229,13 @@ static int __init register_cpufreq_notifier(void)
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cpumask_copy(cpus_to_visit, cpu_possible_mask);
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return cpufreq_register_notifier(&init_cpu_capacity_notifier,
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CPUFREQ_POLICY_NOTIFIER);
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ret = cpufreq_register_notifier(&init_cpu_capacity_notifier,
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CPUFREQ_POLICY_NOTIFIER);
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if (ret)
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free_cpumask_var(cpus_to_visit);
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return ret;
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}
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core_initcall(register_cpufreq_notifier);
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@ -236,6 +243,7 @@ static void parsing_done_workfn(struct work_struct *work)
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{
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cpufreq_unregister_notifier(&init_cpu_capacity_notifier,
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CPUFREQ_POLICY_NOTIFIER);
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free_cpumask_var(cpus_to_visit);
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}
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#else
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