Commit 419e1721 authored Jun 27, 2013 by Jacob Shin Committed by Rafael J. Wysocki Jun 27, 2013

cpufreq: don't leave stale policy pointer in cdbs->cur_policy



Clear ->cur_policy when stopping a governor, or the ->cur_policy
pointer may be stale on systems with have_governor_per_policy when a
new policy is allocated due to CPU hotplug offline/online.

[rjw: Changelog]
Suggested-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Jacob Shin <jacob.shin@amd.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

parent 874e628f

drivers/cpufreq/cpufreq_governor.c

+1 −0

Original line number	Original line	Diff line number	Diff line
	@@ -366,6 +366,7 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,

	mutex_lock(&dbs_data->mutex);		mutex_lock(&dbs_data->mutex);
	mutex_destroy(&cpu_cdbs->timer_mutex);		mutex_destroy(&cpu_cdbs->timer_mutex);
			cpu_cdbs->cur_policy = NULL;

	mutex_unlock(&dbs_data->mutex);		mutex_unlock(&dbs_data->mutex);