The sysfs policy directory is postfixed currently with the CPU number for which the policy was created, which isn't necessarily the first CPU in related_cpus mask.
To make it more consistent and predictable, lets postfix the policy with the first cpu in related-cpus mask.
Suggested-by: Saravana Kannan skannan@codeaurora.org Signed-off-by: Viresh Kumar viresh.kumar@linaro.org --- V2->V3: - Fix error path where we may try to put an uninitialized kobject. - Break kobject_init_and_add() to kobject_init() and kobject_add().
drivers/cpufreq/cpufreq.c | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-)
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 4fa2215cc6ec..7c48e7316d91 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1022,7 +1022,6 @@ static struct cpufreq_policy *cpufreq_policy_alloc(unsigned int cpu) { struct device *dev = get_cpu_device(cpu); struct cpufreq_policy *policy; - int ret;
if (WARN_ON(!dev)) return NULL; @@ -1040,13 +1039,7 @@ static struct cpufreq_policy *cpufreq_policy_alloc(unsigned int cpu) if (!zalloc_cpumask_var(&policy->real_cpus, GFP_KERNEL)) goto err_free_rcpumask;
- ret = kobject_init_and_add(&policy->kobj, &ktype_cpufreq, - cpufreq_global_kobject, "policy%u", cpu); - if (ret) { - pr_err("%s: failed to init policy->kobj: %d\n", __func__, ret); - goto err_free_real_cpus; - } - + kobject_init(&policy->kobj, &ktype_cpufreq); INIT_LIST_HEAD(&policy->policy_list); init_rwsem(&policy->rwsem); spin_lock_init(&policy->transition_lock); @@ -1057,8 +1050,6 @@ static struct cpufreq_policy *cpufreq_policy_alloc(unsigned int cpu) policy->cpu = cpu; return policy;
-err_free_real_cpus: - free_cpumask_var(policy->real_cpus); err_free_rcpumask: free_cpumask_var(policy->related_cpus); err_free_cpumask: @@ -1163,6 +1154,16 @@ static int cpufreq_online(unsigned int cpu) cpumask_copy(policy->related_cpus, policy->cpus); /* Remember CPUs present at the policy creation time. */ cpumask_and(policy->real_cpus, policy->cpus, cpu_present_mask); + + /* Name and add the kobject */ + ret = kobject_add(&policy->kobj, cpufreq_global_kobject, + "policy%u", + cpumask_first(policy->related_cpus)); + if (ret) { + pr_err("%s: failed to add policy->kobj: %d\n", __func__, + ret); + goto out_exit_policy; + } }
/*