Re: [PATCH v2 2/2] mm: Covert sysfs input to bool using kstrtobool()

[Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>]

On Tue, Apr 26, 2022 at 10:30:40PM +0530, Jagdish Gediya wrote:
> Sysfs input conversion to corrosponding bool value e.g. "false" or "0"
> to false, "true" or "1" to true are currently handled through strncmp
> at multiple places. Use kstrtobool() to convert sysfs input to bool
> value.

...

> +	if (kstrtobool(buf, &numa_demotion_enabled))
>  		return -EINVAL;

Hmm... The commit message doesn't explain what's wrong with the error codes
returned by kstrtobool(). Can't it be

	ret = kstrtobool();
	if (ret)
		return ret;

?

...

> +	if (kstrtobool(buf, &enable_vma_readahead))
>  		return -EINVAL;

Ditto.

-- 
With Best Regards,
Andy Shevchenko