linux-kernel - Re: [PATCH -next] rtc: mt6397: drop free_irq of devm

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Date:   Wed, 4 Dec 2019 09:35:28 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Mao Wenan <maowenan@...wei.com>
Cc:     eddie.huang@...iatek.com, sean.wang@...iatek.com,
        a.zummo@...ertech.it, alexandre.belloni@...tlin.com,
        matthias.bgg@...il.com, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-rtc@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        Hulk Robot <hulkci@...wei.com>
Subject: Re: [PATCH -next] rtc: mt6397: drop free_irq of devm_xx allocated irq

On Wed, Dec 04, 2019 at 10:02:09AM +0800, Mao Wenan wrote:
> rtc->irq is requested by devm_request_threaded_irq,
> and request_threaded_irq. IRQs requested with this
> function will be automatically freed on driver detach.
> 
> Reported-by: Hulk Robot <hulkci@...wei.com>
> Signed-off-by: Mao Wenan <maowenan@...wei.com>
> ---
>  drivers/rtc/rtc-mt6397.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/rtc/rtc-mt6397.c b/drivers/rtc/rtc-mt6397.c
> index 5249fc99fd5f..d6a10111137a 100644
> --- a/drivers/rtc/rtc-mt6397.c
> +++ b/drivers/rtc/rtc-mt6397.c
> @@ -293,7 +293,6 @@ static int mtk_rtc_probe(struct platform_device *pdev)
>  	return 0;
>  
>  out_free_irq:
> -	free_irq(rtc->irq, rtc);
>  	return ret;

Please get rid of the error label as well.

regards,
dan carpenter