linux-kernel - Re: [PATCH] leds-88pm860x: use the goto label at data->port

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Message-ID: <CAHdPZaMiDZo7+i7+LAoYbDSy3hi3UAhXzx54+gc2Br2iMuW+pg@mail.gmail.com>
Date:	Mon, 2 Jul 2012 14:46:33 +0530
From:	"devendra.aaru" <devendra.aaru@...il.com>
To:	Bryan Wu <bryan.wu@...onical.com>
Cc:	Richard Purdie <rpurdie@...ys.net>, linux-leds@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] leds-88pm860x: use the goto label at data->port

On Mon, Jul 2, 2012 at 2:35 PM, Bryan Wu <bryan.wu@...onical.com> wrote:
> On Mon, Jul 2, 2012 at 4:22 PM, Devendra Naga <devendra.aaru@...il.com> wrote:
>> at the goto lable out: we are doing free of the led data, and returning ret.
>> the same we are doing at the data->port < 0 case, so use the goto end and
>> assign ret to -EINVAL. this will make the common err path for the
>> data->port and led_classdev_register functions.
>>
>
> This patch is not wrong, but it'd better we replace kzalloc/kfree to
> devm_kzalloc. So we don't care about kfree anymore.
> Are interested in doing that?
>
I have a doubt,

I think the dev pointer is chip->dev for using devm_* ?

please suggest me if i am wrong.
> Thanks,
> -Bryan
>
>> Signed-off-by: Devendra Naga <devendra.aaru@...il.com>
>> ---
>>  drivers/leds/leds-88pm860x.c |    4 ++--
>>  1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/leds/leds-88pm860x.c b/drivers/leds/leds-88pm860x.c
>> index 5b61aaf..538aaa3 100644
>> --- a/drivers/leds/leds-88pm860x.c
>> +++ b/drivers/leds/leds-88pm860x.c
>> @@ -220,8 +220,8 @@ static int pm860x_led_probe(struct platform_device *pdev)
>>         data->port = pdata->flags;
>>         if (data->port < 0) {
>>                 dev_err(&pdev->dev, "check device failed\n");
>> -               kfree(data);
>> -               return -EINVAL;
>> +               ret = -EINVAL;
>> +               goto out;
>>         }
>>
>>         data->current_brightness = 0;
>> --
>> 1.7.9.5
>>
>> --
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>
>
>
> --
> Bryan Wu <bryan.wu@...onical.com>
> Kernel Developer    +86.186-168-78255 Mobile
> Canonical Ltd.      www.canonical.com
> Ubuntu - Linux for human beings | www.ubuntu.com

Thanks,
Devendra.
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