Re: [PATCH] leds: leds-cobalt-qube: Use devm_led_classdev_register

Vaishali Thakkar
2015-08-28T08:19:11Z

On Thu, Aug 27, 2015 at 12:56 PM, Jacek Anaszewski
<j.anaszewski@samsung.com> wrote:
> Hi Vaishali,
>
> Thanks for the patch.
>
> On 08/27/2015 07:13 AM, Vaishali Thakkar wrote:
>>
>> Use resource-managed function devm_led_classdev_register instead
>> of led_classdev_register to make the error-path simpler.
>>
>> To be compatible with the change, goto is replaced with direct
>> return and unneeded label is dropped. Also, remove redundant
>> cobalt_qube_led_remove.
>>
>> Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
>> ---
>> drivers/leds/leds-cobalt-qube.c | 20 ++------------------
>> 1 file changed, 2 insertions(+), 18 deletions(-)
>>
>> diff --git a/drivers/leds/leds-cobalt-qube.c
>> b/drivers/leds/leds-cobalt-qube.c
>> index d975220..59818df 100644
>> --- a/drivers/leds/leds-cobalt-qube.c
>> +++ b/drivers/leds/leds-cobalt-qube.c
>> @@ -49,31 +49,15 @@ static int cobalt_qube_led_probe(struct
>> platform_device *pdev)
>> led_value = LED_FRONT_LEFT | LED_FRONT_RIGHT;
>> writeb(led_value, led_port);
>>
>> - retval = led_classdev_register(&pdev->dev, &qube_front_led);
>> + retval = devm_led_classdev_register(&pdev->dev, &qube_front_led);
>> if (retval)
>> - goto err_null;
>
>
> We can spare more lines by changing this to:
>
> return devm_led_classdev_register(&pdev->dev, &qube_front_led);
>
> You could get rid of retval then, too.

Sure. This makes sense. I will send v2 with the change.

Thanks.

>> -
>> - return 0;
>> -
>> -err_null:
>> - led_port = NULL;
>> -
>> - return retval;
>> -}
>> -
>> -static int cobalt_qube_led_remove(struct platform_device *pdev)
>> -{
>> - led_classdev_unregister(&qube_front_led);
>> -
>> - if (led_port)
>> - led_port = NULL;
>> + return retval;
>>
>> return 0;
>> }
>>
>> static struct platform_driver cobalt_qube_led_driver = {
>> .probe = cobalt_qube_led_probe,
>> - .remove = cobalt_qube_led_remove,
>> .driver = {
>> .name = "cobalt-qube-leds",
>> },
>>
>
>
> --
> Best Regards,
> Jacek Anaszewski

--
Vaishali