policy->user_policy.min = policy->cpuinfo.min_freq;
policy->user_policy.max = policy->cpuinfo.max_freq;
+ blocking_notifier_call_chain(&cpufreq_policy_notifier_list,
+ CPUFREQ_START, policy);
+
#ifdef CONFIG_SMP
#ifdef CONFIG_HOTPLUG_CPU
unsigned int target_freq,
unsigned int relation)
{
- int ret;
+ int ret = -EINVAL;
policy = cpufreq_cpu_get(policy->cpu);
if (!policy)
- return -EINVAL;
+ goto no_policy;
if (unlikely(lock_policy_rwsem_write(policy->cpu)))
- return -EINVAL;
+ goto fail;
ret = __cpufreq_driver_target(policy, target_freq, relation);
unlock_policy_rwsem_write(policy->cpu);
+fail:
cpufreq_cpu_put(policy);
+no_policy:
return ret;
}
EXPORT_SYMBOL_GPL(cpufreq_driver_target);
{
struct cpufreq_policy *data = cpufreq_cpu_get(cpu);
struct cpufreq_policy policy;
- int ret = 0;
+ int ret;
- if (!data)
- return -ENODEV;
+ if (!data) {
+ ret = -ENODEV;
+ goto no_policy;
+ }
- if (unlikely(lock_policy_rwsem_write(cpu)))
- return -EINVAL;
+ if (unlikely(lock_policy_rwsem_write(cpu))) {
+ ret = -EINVAL;
+ goto fail;
+ }
dprintk("updating policy for CPU %u\n", cpu);
memcpy(&policy, data, sizeof(struct cpufreq_policy));
unlock_policy_rwsem_write(cpu);
+fail:
cpufreq_cpu_put(data);
+no_policy:
return ret;
}
EXPORT_SYMBOL(cpufreq_update_policy);