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

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Message-ID: <CAK5ve-+DUsadniHNe3H+j8xFgpV5gBuivD+u=A-D1k4ginqDYw@mail.gmail.com>
Date:	Mon, 2 Jul 2012 17:05:35 +0800
From:	Bryan Wu <bryan.wu@...onical.com>
To:	Devendra Naga <devendra.aaru@...il.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 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?

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
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