linux-kernel - Re: [RESEND PATCH v4 6/6] leds: lm36274: Introduce the TI LM36274 LED driver

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Date:   Thu, 23 May 2019 14:50:12 +0200
From:   Pavel Machek <pavel@....cz>
To:     Dan Murphy <dmurphy@...com>
Cc:     jacek.anaszewski@...il.com, broonie@...nel.org,
        lgirdwood@...il.com, lee.jones@...aro.org,
        linux-leds@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RESEND PATCH v4 6/6] leds: lm36274: Introduce the TI LM36274
 LED driver

Hi!

> +++ b/drivers/leds/leds-lm36274.c

> +static int lm36274_parse_dt(struct lm36274 *lm36274_data)
> +{
> +	struct fwnode_handle *child = NULL;
> +	char label[LED_MAX_NAME_SIZE];
> +	struct device *dev = &lm36274_data->pdev->dev;
> +	const char *name;
> +	int child_cnt;
> +	int ret = -EINVAL;
> +
> +	/* There should only be 1 node */
> +	child_cnt = device_get_child_node_count(dev);
> +	if (child_cnt != 1)
> +		return ret;

I'd do explicit "return -EINVAL" here.

> +static int lm36274_probe(struct platform_device *pdev)
> +{
> +	struct ti_lmu *lmu = dev_get_drvdata(pdev->dev.parent);
> +	struct lm36274 *lm36274_data;
> +	int ret;
> +
> +	lm36274_data = devm_kzalloc(&pdev->dev, sizeof(*lm36274_data),
> +				    GFP_KERNEL);
> +	if (!lm36274_data) {
> +		ret = -ENOMEM;
> +		return ret;
> +	}

And certainly do "return -ENOMEM" explicitly here.

Acked-by: Pavel Machek <pavel@....cz>
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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