linux-kernel - Re: [PATCH V2 13/16] cpuidle: free all state kobjects from cpuidle_free_state

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Date:	Wed, 20 Nov 2013 13:33:53 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	"Rafael J. Wysocki" <rjw@...ysocki.net>
Cc:	Lists linaro-kernel <linaro-kernel@...ts.linaro.org>,
	Patch Tracking <patches@...aro.org>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Viresh Kumar <viresh.kumar@...aro.org>,
	Daniel Lezcano <daniel.lezcano@...aro.org>
Subject: Re: [PATCH V2 13/16] cpuidle: free all state kobjects from cpuidle_free_state_kobj()

Fixing Rafael's email id..

On 20 November 2013 13:33, Viresh Kumar <viresh.kumar@...aro.org> wrote:
> On 3 October 2013 21:26, Viresh Kumar <viresh.kumar@...aro.org> wrote:
>> Loop for states is currently present on callers side and so is replicated at
>> several places. It would be better to move that inside cpuidle_free_state_kobj()
>> instead.
>>
>> This patch does it.
>>
>> Acked-by: Daniel Lezcano <daniel.lezcano@...aro.org>
>> Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
>> ---
>>  drivers/cpuidle/sysfs.c | 23 ++++++++++++-----------
>>  1 file changed, 12 insertions(+), 11 deletions(-)
>
> Hi Rafael,
>
> You missed applying this one?
>
>> diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c
>> index e918b6d..ade31a9 100644
>> --- a/drivers/cpuidle/sysfs.c
>> +++ b/drivers/cpuidle/sysfs.c
>> @@ -378,12 +378,17 @@ static struct kobj_type ktype_state_cpuidle = {
>>         .release = cpuidle_state_sysfs_release,
>>  };
>>
>> -static inline void cpuidle_free_state_kobj(struct cpuidle_device *device, int i)
>> +static inline void cpuidle_free_state_kobj(struct cpuidle_device *device,
>> +               int count)
>>  {
>> -       kobject_put(&device->kobjs[i]->kobj);
>> -       wait_for_completion(&device->kobjs[i]->kobj_unregister);
>> -       kfree(device->kobjs[i]);
>> -       device->kobjs[i] = NULL;
>> +       int i;
>> +
>> +       for (i = 0; i < count; i++) {
>> +               kobject_put(&device->kobjs[i]->kobj);
>> +               wait_for_completion(&device->kobjs[i]->kobj_unregister);
>> +               kfree(device->kobjs[i]);
>> +               device->kobjs[i] = NULL;
>> +       }
>>  }
>>
>>  /**
>> @@ -419,8 +424,7 @@ static int cpuidle_add_state_sysfs(struct cpuidle_device *device)
>>         return 0;
>>
>>  error_state:
>> -       for (i = i - 1; i >= 0; i--)
>> -               cpuidle_free_state_kobj(device, i);
>> +       cpuidle_free_state_kobj(device, i);
>>         return ret;
>>  }
>>
>> @@ -430,10 +434,7 @@ error_state:
>>   */
>>  static void cpuidle_remove_state_sysfs(struct cpuidle_device *device)
>>  {
>> -       int i;
>> -
>> -       for (i = 0; i < device->state_count; i++)
>> -               cpuidle_free_state_kobj(device, i);
>> +       cpuidle_free_state_kobj(device, device->state_count);
>>  }
>>
>>  #ifdef CONFIG_CPU_IDLE_MULTIPLE_DRIVERS
>> --
>> 1.7.12.rc2.18.g61b472e
>>
--
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