linux-kernel - Re: [PATCH 2/4] iio: temperature: ltc2983: convert to dev_err

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Date: Thu, 4 Apr 2024 15:18:05 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Nuno Sa <nuno.sa@...log.com>
Cc: Petr Mladek <pmladek@...e.com>, Jonathan Cameron <jic23@...nel.org>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Olivier Moysan <olivier.moysan@...s.st.com>,
	Jyoti Bhayana <jbhayana@...gle.com>,
	Chris Down <chris@...isdown.name>,
	John Ogness <john.ogness@...utronix.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org
Subject: Re: [PATCH 2/4] iio: temperature: ltc2983: convert to dev_err_probe()

On Thu, Apr 04, 2024 at 01:06:24PM +0200, Nuno Sa wrote:
> Use dev_err_probe() in the probe() path. While at it, made some simple
> improvements:
>  * Declare a struct device *dev helper. This also makes the style more
>    consistent (some places the helper was used and not in other places);
>  * Explicitly included the err.h and errno.h headers;
>  * Removed an useless else if();
>  * Removed some unnecessary line breaks.

..

>  	if (!(thermo->sensor_config & LTC2983_THERMOCOUPLE_DIFF_MASK) &&
> -	    sensor->chan < LTC2983_DIFFERENTIAL_CHAN_MIN) {

It's better if you leave {} when the body goes after a single line.
This applies to your entire series.

> -		dev_err(&st->spi->dev,
> -			"Invalid chann:%d for differential thermocouple",
> -			sensor->chan);
> -		return ERR_PTR(-EINVAL);
> -	}
> +	    sensor->chan < LTC2983_DIFFERENTIAL_CHAN_MIN)
> +		return dev_errp_probe(dev, -EINVAL,
> +				      "Invalid chann:%d for differential thermocouple",
> +				      sensor->chan);

-- 
With Best Regards,
Andy Shevchenko