linux-kernel - Re: [PATCH v7 8/8] pwm: pca9685: Add error messages for failed regmap calls

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Message-ID: <20210407214130.6retlpofjppl3o53@pengutronix.de>
Date:   Wed, 7 Apr 2021 23:41:30 +0200
From:   Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
To:     Clemens Gruber <clemens.gruber@...ruber.com>
Cc:     linux-pwm@...r.kernel.org,
        Thierry Reding <thierry.reding@...il.com>,
        Sven Van Asbroeck <TheSven73@...il.com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 8/8] pwm: pca9685: Add error messages for failed
 regmap calls

Hello Clemens,

On Wed, Apr 07, 2021 at 10:47:45PM +0200, Clemens Gruber wrote:
> On Wed, Apr 07, 2021 at 08:16:19AM +0200, Uwe Kleine-König wrote:
> > You didn't check all return codes? How did you select the calls to
> > check?
> 
> No, because it would become a big mess and really obstruct readability
> in my opinion.
> 
> So I chose some kind of middleground:
> I decided to check the first regmap_read and regmap_write in probe and
> return the error code if something goes wrong there.
> If something goes wrong after probe, I only print an error message.
> 
> Is that acceptable?

I wanted to have that in the commit log, but just noticed that I didn't
read it carefully enough, it's already there.

So if you change %d in the error messages to %pe I'm happy with this
patch.

Thanks
Uwe


-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |

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