2 files changed, 13 insertions, 0 deletions

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 9e83d9142072..75c5bd424d59 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -40,6 +40,7 @@ static DEFINE_PER_CPU(struct cpufreq_policy *, cpufreq_cpu_data);
 static DEFINE_PER_CPU(struct cpufreq_policy *, cpufreq_cpu_data_fallback);
 static DEFINE_RWLOCK(cpufreq_driver_lock);
 static DEFINE_MUTEX(cpufreq_governor_lock);
+static LIST_HEAD(cpufreq_policy_list);
 
 #ifdef CONFIG_HOTPLUG_CPU
 /* This one keeps track of the previously set governor of a removed CPU */
@@ -952,6 +953,7 @@ static struct cpufreq_policy *cpufreq_policy_alloc(void)
         if (!zalloc_cpumask_var(&policy->related_cpus, GFP_KERNEL))
                 goto err_free_cpumask;
 
+        INIT_LIST_HEAD(&policy->policy_list);
         return policy;
 
 err_free_cpumask:
@@ -964,6 +966,12 @@ err_free_policy:
 
 static void cpufreq_policy_free(struct cpufreq_policy *policy)
 {
+        unsigned long flags;
+
+        write_lock_irqsave(&cpufreq_driver_lock, flags);
+        list_del(&policy->policy_list);
+        write_unlock_irqrestore(&cpufreq_driver_lock, flags);
+
         free_cpumask_var(policy->related_cpus);
         free_cpumask_var(policy->cpus);
         kfree(policy);
@@ -1077,6 +1085,10 @@ static int __cpufreq_add_dev(struct device *dev, struct subsys_interface *sif,
                 ret = cpufreq_add_dev_interface(policy, dev);
                 if (ret)
                         goto err_out_unregister;
+
+                write_lock_irqsave(&cpufreq_driver_lock, flags);
+                list_add(&policy->policy_list, &cpufreq_policy_list);
+                write_unlock_irqrestore(&cpufreq_driver_lock, flags);
         }
 
         cpufreq_init_policy(policy);
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 29208923c9d3..431a05d4b4c9 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -82,6 +82,7 @@ struct cpufreq_policy {
 
         struct cpufreq_real_policy      user_policy;
 
+        struct list_head        policy_list;
         struct kobject          kobj;
         struct completion       kobj_unregister;
         int                     transition_ongoing; /* Tracks transition status */