linux-kernel - Re: [PATCH v2 4/4] iio: common: scmi_iio: convert to dev_err

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Date: Thu, 02 May 2024 13:33:38 +0200
From: Nuno Sá <noname.nuno@...il.com>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, nuno.sa@...log.com
Cc: Petr Mladek <pmladek@...e.com>, Chris Down <chris@...isdown.name>, John
 Ogness <john.ogness@...utronix.de>, Greg Kroah-Hartman
 <gregkh@...uxfoundation.org>,  Jonathan Cameron <jic23@...nel.org>,
 Lars-Peter Clausen <lars@...afoo.de>, Olivier Moysan
 <olivier.moysan@...s.st.com>, Andi Shyti <andi.shyti@...nel.org>, Jyoti
 Bhayana <jbhayana@...gle.com>, linux-kernel@...r.kernel.org,
 linux-iio@...r.kernel.org
Subject: Re: [PATCH v2 4/4] iio: common: scmi_iio: convert to dev_err_probe()

On Tue, 2024-04-23 at 18:50 +0300, Andy Shevchenko wrote:
> On Tue, Apr 23, 2024 at 05:20:33PM +0200, Nuno Sa via B4 Relay wrote:
> > From: Nuno Sa <nuno.sa@...log.com>
> > 
> > Make use of dev_err_probe() and dev_err_ptr_probe() to simplify error paths
> > during probe.
> 
> ...
> 
> > +		return dev_err_ptr_probe(&iiodev->dev, ret,
> > +					 "Error in registering sensor update
> > notifier for sensor %s err %d",
> 
> \n

sure...

> 
> > +					 sensor->sensor_info->name, ret);
> 
> ...
> 
> > +			return dev_err_probe(dev, -EINVAL,
> > +					     "SCMI sensor %d has missing
> > info\n", i);
> 
> One line? (It's 99 if you use relaxed limit).

Being this IIO, Jonathan prefers to stick the old limit unless readability is hurt...
> 
> ...
> 
> > +			return dev_err_probe(dev, PTR_ERR(scmi_iio_dev),
> > +					     "failed to allocate IIO device for
> > sensor %s: %ld\n",
> > +					     sensor_info->name,
> > PTR_ERR(scmi_iio_dev));
> 
> Please, be sure you remove double error code printing, dev_err_probe() does it
> for you already. (This applies to all places like this, if any, in the entire
> series.)

Up... blind conversion. Thanks!

- Nuno Sá