linux-kernel - Re: [PATCH] leds: syscon: Correct check for syscon_node_to

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Date:	Tue, 18 Aug 2015 12:35:23 +0200
From:	Jacek Anaszewski <j.anaszewski@...sung.com>
To:	Bjorn Andersson <bjorn.andersson@...ymobile.com>
Cc:	Bryan Wu <cooloney@...il.com>, Richard Purdie <rpurdie@...ys.net>,
	Linus Walleij <linus.walleij@...aro.org>,
	linux-leds@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] leds: syscon: Correct check for syscon_node_to_regmap()
 errors

Hi Bjor,

On 08/17/2015 06:18 PM, Bjorn Andersson wrote:
> syscon_node_to_regmap() returns a regmap or an ERR_PTR().
>
> Signed-off-by: Bjorn Andersson <bjorn.andersson@...ymobile.com>
> ---
>   drivers/leds/leds-syscon.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/leds/leds-syscon.c b/drivers/leds/leds-syscon.c
> index d1660b039812..39fca4c9f1ee 100644
> --- a/drivers/leds/leds-syscon.c
> +++ b/drivers/leds/leds-syscon.c
> @@ -83,7 +83,7 @@ static int syscon_led_probe(struct platform_device *pdev)
>   		return -ENODEV;
>   	}
>   	map = syscon_node_to_regmap(parent->of_node);
> -	if (!map) {
> +	if (IS_ERR(map)) {
>   		dev_err(dev, "no regmap for syscon LED parent\n");
>   		return -ENODEV;

return PTR_ERR(map) ?

>   	}
>


-- 
Best Regards,
Jacek Anaszewski
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