linux-kernel - Re: [PATCH] watchdog: at91rm9200: Correct check for syscon_node_to

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Date:	Mon, 17 Aug 2015 09:33:26 -0700
From:	Guenter Roeck <linux@...ck-us.net>
To:	Bjorn Andersson <bjorn.andersson@...ymobile.com>,
	Wim Van Sebroeck <wim@...ana.be>
CC:	linux-watchdog@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] watchdog: at91rm9200: Correct check for syscon_node_to_regmap()
 errors

On 08/17/2015 09:19 AM, Bjorn Andersson wrote:
> syscon_node_to_regmap() returns a regmap or an ERR_PTR().
>
> Signed-off-by: Bjorn Andersson <bjorn.andersson@...ymobile.com>

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

> ---
>   drivers/watchdog/at91rm9200_wdt.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/watchdog/at91rm9200_wdt.c b/drivers/watchdog/at91rm9200_wdt.c
> index 9ba1153465ae..e12a797cb820 100644
> --- a/drivers/watchdog/at91rm9200_wdt.c
> +++ b/drivers/watchdog/at91rm9200_wdt.c
> @@ -244,7 +244,7 @@ static int at91wdt_probe(struct platform_device *pdev)
>   	}
>
>   	regmap_st = syscon_node_to_regmap(parent->of_node);
> -	if (!regmap_st)
> +	if (IS_ERR(regmap_st))
>   		return -ENODEV;
>
>   	res = misc_register(&at91wdt_miscdev);
>

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