Commit 633d47d6 authored Feb 06, 2013 by Dirk Brandewie Committed by Rafael J. Wysocki Feb 09, 2013

cpufreq_stats: do not remove sysfs files if frequency table is not present



The sysfs files for cpufreq_stats are created in cpufreq_stats_create_table()
called from cpufreq_stat_notifier_policy() when a policy is added to
the cpu. cpufreq_stats_create_table() will not be called if the
scaling driver does not export a frequency table to cpufreq.  Use the
same fence on tear down.

Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

parent fa69e33f

drivers/cpufreq/cpufreq_stats.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -179,6 +179,10 @@ static void cpufreq_stats_free_table(unsigned int cpu)
		static void cpufreq_stats_free_sysfs(unsigned int cpu)
		{
		struct cpufreq_policy *policy = cpufreq_cpu_get(cpu);

		if (!cpufreq_frequency_get_table(cpu))
		return;

		if (policy && !policy_is_shared(policy)) {
		pr_debug("%s: Free sysfs stat\n", __func__);
		sysfs_remove_group(&policy->kobj, &stats_attr_group);