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-rw-r--r--drivers/cpufreq/cpufreq.c17
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index c8912756f..91efa23e0 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1525,7 +1525,8 @@ static int cpufreq_online(unsigned int cpu)
if (cpufreq_driver->ready)
cpufreq_driver->ready(policy);
- if (cpufreq_thermal_control_enabled(cpufreq_driver))
+ /* Register cpufreq cooling only for a new policy */
+ if (new_policy && cpufreq_thermal_control_enabled(cpufreq_driver))
policy->cdev = of_cpufreq_cooling_register(policy);
pr_debug("initialization complete\n");
@@ -1609,11 +1610,6 @@ static void __cpufreq_offline(unsigned int cpu, struct cpufreq_policy *policy)
else
policy->last_policy = policy->policy;
- if (cpufreq_thermal_control_enabled(cpufreq_driver)) {
- cpufreq_cooling_unregister(policy->cdev);
- policy->cdev = NULL;
- }
-
if (has_target())
cpufreq_exit_governor(policy);
@@ -1674,6 +1670,15 @@ static void cpufreq_remove_dev(struct device *dev, struct subsys_interface *sif)
return;
}
+ /*
+ * Unregister cpufreq cooling once all the CPUs of the policy are
+ * removed.
+ */
+ if (cpufreq_thermal_control_enabled(cpufreq_driver)) {
+ cpufreq_cooling_unregister(policy->cdev);
+ policy->cdev = NULL;
+ }
+
/* We did light-weight exit earlier, do full tear down now */
if (cpufreq_driver->offline)
cpufreq_driver->exit(policy);