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From: Sean Young <sean@mess.org>
To: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
Cc: linux-media@vger.kernel.org, linux-pwm@vger.kernel.org,
	Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>,
	Thierry Reding <thierry.reding@gmail.com>,
	Florian Fainelli <florian.fainelli@broadcom.com>,
	Broadcom internal kernel review list 
	<bcm-kernel-feedback-list@broadcom.com>,
	Ray Jui <rjui@broadcom.com>,
	Scott Branden <sbranden@broadcom.com>,
	linux-rpi-kernel@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v4 3/4] pwm: bcm2835: allow pwm driver to be used in atomic context
Date: Sun, 29 Oct 2023 08:39:42 +0000	[thread overview]
Message-ID: <ZT4aTsQJ_LUzGYay@gofer.mess.org> (raw)
In-Reply-To: <20231027133818.f5zpeqxfw7ghs7sk@pengutronix.de>

Hello Uwe,

On Fri, Oct 27, 2023 at 03:38:18PM +0200, Uwe Kleine-König wrote:
> On Fri, Oct 27, 2023 at 10:20:46AM +0100, Sean Young wrote:
> > +	pc->rate = clk_get_rate(pc->clk);
> > +	if (!pc->rate) {
> > +		dev_err(pc->dev, "failed to get clock rate\n");
> > +		ret = -EINVAL;
> 
> Other error paths in this driver use dev_err_probe(). The most compact
> way here would be:
> 
> 	ret = dev_err_probe(pc->dev, -EINVAL, "....");
> 
> but maybe
> 
> 	ret = -EINVAL;
> 	dev_err_probe(pc->dev, ret, "...");
> 
> is a bit easier to parse for a human?!

Using the same dev_err_probe() function for all error paths is nice, so
I will change it for the next version. This change will print the EINVAL
error as well which does not really add anything, but no harm done there.

Thanks,

Sean

  parent reply	other threads:[~2023-10-29  8:40 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <cover.1698398004.git.sean@mess.org>
2023-10-27  9:20 ` [PATCH v4 1/4] pwm: rename pwm_apply_state() to pwm_apply_cansleep() Sean Young
2023-10-27  9:20 ` [PATCH v4 2/4] pwm: make it possible to apply pwm changes in atomic context Sean Young
2023-10-27  9:20 ` [PATCH v4 3/4] pwm: bcm2835: allow pwm driver to be used " Sean Young
     [not found]   ` <20231027133818.f5zpeqxfw7ghs7sk@pengutronix.de>
2023-10-29  8:39     ` Sean Young [this message]
2023-10-27  9:20 ` [PATCH v4 4/4] media: pwm-ir-tx: trigger edges from hrtimer interrupt context Sean Young

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