linux-kernel - Re: [PATCH] watchdog: sunxi_wdt: fix improper error exit code

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Message-ID: <20200529165153.GA162777@roeck-us.net>
Date:   Fri, 29 May 2020 09:51:53 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Frank Lee <frank@...winnertech.com>
Cc:     wim@...ux-watchdog.org, mripard@...nel.org, wens@...e.org,
        linux-watchdog@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        wuyan@...winnertech.com, tiny.windzz@...il.com
Subject: Re: [PATCH] watchdog: sunxi_wdt: fix improper error exit code

On Fri, May 29, 2020 at 05:45:14PM +0800, Frank Lee wrote:
> From: Martin Wu <wuyan@...winnertech.com>
> 
> sunxi_wdt_probe() should return -ENOMEM when devm_kzalloc() fails.
> 
> Signed-off-by: Martin Wu <wuyan@...winnertech.com>
> Signed-off-by: Frank Lee <frank@...winnertech.com>

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

> ---
>  drivers/watchdog/sunxi_wdt.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/watchdog/sunxi_wdt.c b/drivers/watchdog/sunxi_wdt.c
> index 5f05a45ac187..b50757882a98 100644
> --- a/drivers/watchdog/sunxi_wdt.c
> +++ b/drivers/watchdog/sunxi_wdt.c
> @@ -235,7 +235,7 @@ static int sunxi_wdt_probe(struct platform_device *pdev)
>  
>  	sunxi_wdt = devm_kzalloc(dev, sizeof(*sunxi_wdt), GFP_KERNEL);
>  	if (!sunxi_wdt)
> -		return -EINVAL;
> +		return -ENOMEM;
>  
>  	sunxi_wdt->wdt_regs = of_device_get_match_data(dev);
>  	if (!sunxi_wdt->wdt_regs)
> -- 
> 2.24.0
>