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SubjectRe: [PATCH] leds: leds-netxbig.c: Use devm_led_classdev_register
On 10/21/2015 10:05 AM, Simon Guinot wrote:
> On Wed, Oct 21, 2015 at 09:01:00AM +0200, Jacek Anaszewski wrote:
>> Hi Fida,
>>
>> On 10/20/2015 10:06 PM, Fida Mohammad wrote:
>>> Use resource managed function devm_led_classdev_register to make
>>> error path simpler. Consequently, removed a goto call and
>>> remove function made simpler.
>>>
>>> Signed-off-by: Fida Mohammad <fmthoker@gmail.com>
>>> ---
>>> drivers/leds/leds-netxbig.c | 25 +++++--------------------
>>> 1 file changed, 5 insertions(+), 20 deletions(-)
>>>
>>> diff --git a/drivers/leds/leds-netxbig.c b/drivers/leds/leds-netxbig.c
>>> index 25e4197..639f8bd 100644
>>> --- a/drivers/leds/leds-netxbig.c
>>> +++ b/drivers/leds/leds-netxbig.c
>>> @@ -299,10 +299,6 @@ static struct attribute *netxbig_led_attrs[] = {
>>> };
>>> ATTRIBUTE_GROUPS(netxbig_led);
>>>
>>> -static void delete_netxbig_led(struct netxbig_led_data *led_dat)
>>> -{
>>> - led_classdev_unregister(&led_dat->cdev);
>>> -}
>>>
>>> static int
>>> create_netxbig_led(struct platform_device *pdev,
>>> @@ -343,7 +339,7 @@ create_netxbig_led(struct platform_device *pdev,
>>> if (led_dat->mode_val[NETXBIG_LED_SATA] != NETXBIG_LED_INVALID_MODE)
>>> led_dat->cdev.groups = netxbig_led_groups;
>>>
>>> - return led_classdev_register(&pdev->dev, &led_dat->cdev);
>>> + return devm_led_classdev_register(&pdev->dev, &led_dat->cdev);
>>> }
>>>
>>> static int netxbig_led_probe(struct platform_device *pdev)
>>> @@ -367,32 +363,21 @@ static int netxbig_led_probe(struct platform_device *pdev)
>>>
>>> for (i = 0; i < pdata->num_leds; i++) {
>>> ret = create_netxbig_led(pdev, &leds_data[i], &pdata->leds[i]);
>>> - if (ret < 0)
>>> - goto err_free_leds;
>>> + if (ret < 0) {
>>> + gpio_ext_free(pdata->gpio_ext);
>>> + return ret;
>>> + }
>>> }
>>>
>>> platform_set_drvdata(pdev, leds_data);
>>>
>>> return 0;
>>>
>>> -err_free_leds:
>>> - for (i = i - 1; i >= 0; i--)
>>> - delete_netxbig_led(&leds_data[i]);
>>> -
>>> - gpio_ext_free(pdata->gpio_ext);
>>> - return ret;
>>> }
>>>
>>> static int netxbig_led_remove(struct platform_device *pdev)
>>> {
>>> struct netxbig_led_platform_data *pdata = dev_get_platdata(&pdev->dev);
>>> - struct netxbig_led_data *leds_data;
>>> - int i;
>>> -
>>> - leds_data = platform_get_drvdata(pdev);
>>> -
>>> - for (i = 0; i < pdata->num_leds; i++)
>>> - delete_netxbig_led(&leds_data[i]);
>>>
>>> gpio_ext_free(pdata->gpio_ext);
>>>
>>>
>>
>> Thanks for the patch.
>>
>> Always when submitting patches please cc also the author.
>> I know that this is a simple optimization, but nevertheless
>> an ack from the author, who can test the patch on the hardware,
>> is valuable. Cc Simon.
>
> Hi Fida and Jacek,
>
> An extended version of this patch (with also the devm_gpio_ conversion)
> is already sitting in the LED's for-next branch.
>
> deae3c1895c234e17dafea57b0d4ce4d5da16559
> leds: netxbig: convert to use the devm_ functions

Hi Simon, Fida,

Indeed. Fida - please use LED tree as a reference for your patches.

git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds.git

--
Best Regards,
Jacek Anaszewski


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