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From: Bjorn Andersson <bjorn.andersson@linaro.org>
To: Marijn Suijten <marijn.suijten@somainline.org>
Cc: Pavel Machek <pavel@ucw.cz>, Dan Murphy <dmurphy@ti.com>,
	Rob Herring <robh+dt@kernel.org>, Andy Gross <agross@kernel.org>,
	Thierry Reding <thierry.reding@gmail.com>,
	Uwe Kleine-K?nig <u.kleine-koenig@pengutronix.de>,
	Lee Jones <lee.jones@linaro.org>,
	Martin Botka <martin.botka1@gmail.com>,
	linux-leds@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	linux-pwm@vger.kernel.org
Subject: Re: [PATCH v6 2/4] leds: Add driver for Qualcomm LPG
Date: Thu, 29 Apr 2021 15:54:36 -0500	[thread overview]
Message-ID: <20210429205436.GA2484@yoga> (raw)
In-Reply-To: <f7fa3d57-3541-130a-e5fc-0df31206598f@somainline.org>

On Thu 29 Apr 14:31 CDT 2021, Marijn Suijten wrote:

> On 4/29/21 12:39 AM, Bjorn Andersson wrote:
> > On Sun 18 Apr 16:54 CDT 2021, Marijn Suijten wrote:
[..]
> > > > +	ret = lpg_init_lut(lpg);
> > > > +	if (ret < 0)
> > > > +		return ret;
> > > 
> > > 
> > > How about turning these returns into dev_err_probe?  I'm not sure if that's
> > > the expected way to go nowadays, but having some form of logging when a
> > > driver fails to probe is always good to have.
> > > 
> > 
> > The intention is that each code path through these functions will either
> > pass or spit out an error in the log. I looked through them again and
> > think I cover all paths...
> 
> 
> That is true, all the errors not covered are extremely unlikely like
> -ENOMEM.  I vaguely recall having to insert extra logging to get through
> initial probe, but that might have been something inside lpg_add_led as
> well.  Fine to leave this as it is.
> 

When kzalloc et al returns -ENOMEM it will be done with an error print,
so that does not need an additional print. That said, another pass
through lpg_add_led() made me spot that if you get a parse error on
the "color" property we would silently return -EINVAL. I've corrected
this.

Thanks,
Bjorn

  reply	other threads:[~2021-04-29 20:54 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-21 20:12 [PATCH v6 0/4] Qualcomm Light Pulse Generator Bjorn Andersson
2020-10-21 20:12 ` [PATCH v6 1/4] dt-bindings: leds: Add Qualcomm Light Pulse Generator binding Bjorn Andersson
2020-10-26 15:02   ` Rob Herring
2020-10-21 20:12 ` [PATCH v6 2/4] leds: Add driver for Qualcomm LPG Bjorn Andersson
2020-10-22 19:25   ` Luca Weiss
2020-10-29 18:13   ` Pavel Machek
2021-04-29  0:12     ` Bjorn Andersson
2021-04-29 21:12       ` Pavel Machek
2021-04-29 21:29         ` Bjorn Andersson
2021-05-04 15:43           ` Pavel Machek
2021-05-04 16:13             ` Bjorn Andersson
2021-05-05  5:21               ` Uwe Kleine-König
2021-04-18 21:54   ` Marijn Suijten
2021-04-28 22:39     ` Bjorn Andersson
2021-04-29 19:31       ` Marijn Suijten
2021-04-29 20:54         ` Bjorn Andersson [this message]
2021-05-05  5:15   ` Uwe Kleine-König
2021-05-05  5:19     ` Uwe Kleine-König
2021-05-13 17:43     ` Bjorn Andersson
2020-10-21 20:12 ` [PATCH v6 3/4] arm64: dts: qcom: pm(i)8994: Add mpp and lpg blocks Bjorn Andersson
2020-10-21 20:12 ` [PATCH v6 4/4] arm64: dts: qcom: Add user LEDs on db820c Bjorn Andersson
2021-04-15 10:46 [PATCH v6 2/4] leds: Add driver for Qualcomm LPG Yassine Oudjana

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