linux-kernel - Re: [PATCH 04/11] staging: iio: adt7316: fix handling of dac high resolution option

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Date:   Wed, 12 Dec 2018 11:23:16 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Jeremy Fertic <jeremyfertic@...il.com>
Cc:     Jonathan Cameron <jic23@...nel.org>, devel@...verdev.osuosl.org,
        Lars-Peter Clausen <lars@...afoo.de>,
        Michael Hennerich <Michael.Hennerich@...log.com>,
        linux-iio@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        Hartmut Knaack <knaack.h@....de>
Subject: Re: [PATCH 04/11] staging: iio: adt7316: fix handling of dac high
 resolution option

On Tue, Dec 11, 2018 at 05:54:56PM -0700, Jeremy Fertic wrote:
> @@ -651,10 +649,12 @@ static ssize_t adt7316_store_da_high_resolution(struct device *dev,
>  	u8 config3;
>  	int ret;
>  
> +	if (chip->id == ID_ADT7318 || chip->id == ID_ADT7519)
> +		return -EPERM;

return -EINVAL is more appropriate than -EPERM.

regards,
dan carpenter