linux-kernel - Re: [PATCH 2/3] watchdog: rn5t618: Simplify using devm_watchdog_register

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Message-ID: <c029adf2-7f7e-452f-bc35-b2ecbf0d3128@roeck-us.net>
Date:   Mon, 6 Mar 2023 09:31:11 -0800
From:   Guenter Roeck <linux@...ck-us.net>
To:     Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
Cc:     Wim Van Sebroeck <wim@...ux-watchdog.org>,
        linux-watchdog@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel@...gutronix.de
Subject: Re: [PATCH 2/3] watchdog: rn5t618: Simplify using
 devm_watchdog_register_device()

On Mon, Mar 06, 2023 at 06:09:00PM +0100, Uwe Kleine-König wrote:
> This allows to drop the .remove() function as it only exists to
> unregister the watchdog device which is now done in a callback
> registered by devm_watchdog_register_device().
> 
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>

Reviewed-by: Guenter Roeck <linux@...ck-us.net>

> ---
>  drivers/watchdog/rn5t618_wdt.c | 12 +-----------
>  1 file changed, 1 insertion(+), 11 deletions(-)
> 
> diff --git a/drivers/watchdog/rn5t618_wdt.c b/drivers/watchdog/rn5t618_wdt.c
> index 40d8ebd8c0ac..c0aee627ff3b 100644
> --- a/drivers/watchdog/rn5t618_wdt.c
> +++ b/drivers/watchdog/rn5t618_wdt.c
> @@ -178,21 +178,11 @@ static int rn5t618_wdt_probe(struct platform_device *pdev)
>  
>  	platform_set_drvdata(pdev, wdt);
>  
> -	return watchdog_register_device(&wdt->wdt_dev);
> -}
> -
> -static int rn5t618_wdt_remove(struct platform_device *pdev)
> -{
> -	struct rn5t618_wdt *wdt = platform_get_drvdata(pdev);
> -
> -	watchdog_unregister_device(&wdt->wdt_dev);
> -
> -	return 0;
> +	return devm_watchdog_register_device(&wdt->wdt_dev);
>  }
>  
>  static struct platform_driver rn5t618_wdt_driver = {
>  	.probe = rn5t618_wdt_probe,
> -	.remove = rn5t618_wdt_remove,
>  	.driver = {
>  		.name	= DRIVER_NAME,
>  	},
> -- 
> 2.39.1
>