Re: [PATCH v10 2/6] backlight: Add support Skyworks SKY81452 backlight driver

[Oliver Neukum]

On Wed, 2014-12-03 at 16:05 +0900, gyungoh@xxxxxxxxx wrote:
> +static ssize_t sky81452_bl_store_enable(struct device *dev,
> +               struct device_attribute *attr, const char *buf, size_t
> count)
> +{
> +       struct regmap *regmap = bl_get_data(to_backlight_device(dev));
> +       unsigned long value;
> +       int ret;
> +
> +       ret = kstrtoul(buf, 16, &value);
> +       if (IS_ERR_VALUE(ret))
> +               return ret;
> +
> +       ret = regmap_update_bits(regmap, SKY81452_REG1, SKY81452_EN,
> +                                       value << CTZ(SKY81452_EN));

No range checking for value?

> +       if (IS_ERR_VALUE(ret))
> +               return ret;
> +
> +       return count;
> +}

	Regards
		Oliver

-- 
Oliver Neukum <oneukum@xxxxxxx>

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