linux-kernel - Re: [PATCHv4 4/4] Input: EXC3000: Add support to query model and fw

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Date:   Thu, 6 Aug 2020 17:39:01 -0700
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     Sebastian Reichel <sebastian.reichel@...labora.com>
Cc:     Ahmet Inan <inan@...tec.de>,
        Martin Fuzzey <martin.fuzzey@...wbird.group>,
        Rob Herring <robh+dt@...nel.org>, linux-input@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel@...labora.com,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>
Subject: Re: [PATCHv4 4/4] Input: EXC3000: Add support to query model and
 fw_version

Hi Sebastian,

On Wed, Aug 05, 2020 at 06:05:20PM +0200, Sebastian Reichel wrote:
>  
> +static int exc3000_query_interrupt(struct exc3000_data *data)
> +{
> +	u8 *buf = data->buf;
> +	int err;
> +
> +	err = i2c_master_recv(data->client, buf, EXC3000_LEN_FRAME);
> +	if (err < 0)
> +		return err;
> +
> +	if (buf[0] != 0x42)

I changed this to 'B' to match the rest of the function.

> +		return -EPROTO;
> +
> +	if (buf[4] == 'E')
> +		strlcpy(data->model, buf+5, sizeof(data->model));
> +	else if (buf[4] == 'D')
> +		strlcpy(data->fw_version, buf+5, sizeof(data->fw_version));
> +	else
> +		return -EPROTO;
> +
> +	return 0;
> +}
> +
> +	error = sysfs_create_group(&client->dev.kobj, &exc3000_attribute_group);
> +	if (error)
> +		return error;
> +
> +	error = devm_add_action_or_reset(&client->dev, exc3000_unregister_sysfs, &client->dev);
> +	if (error)
> +		return error;

Replaced 2 calls with devm_device_add_group().

Please yell if I managed to break it...

Thanks.

-- 
Dmitry