linux-kernel - Re: [PATCH 2/3] thermal: Add Mediatek thermal controller support

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Date:	Wed, 30 Sep 2015 08:14:59 +0200
From:	Sascha Hauer <s.hauer@...gutronix.de>
To:	Vladimir Zapolskiy <vladimir_zapolskiy@...tor.com>
Cc:	Eduardo Valentin <edubezval@...il.com>, linux-pm@...r.kernel.org,
	Zhang Rui <rui.zhang@...el.com>, linux-kernel@...r.kernel.org,
	kernel@...gutronix.de, linux-mediatek@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org,
	Matthias Brugger <matthias.bgg@...il.com>,
	devicetree@...r.kernel.org, mark.rutland@....com,
	robh+dt@...nel.org
Subject: Re: [PATCH 2/3] thermal: Add Mediatek thermal controller support

Hi Vladimir,

On Wed, Sep 23, 2015 at 09:31:12PM +0300, Vladimir Zapolskiy wrote:
> Hi Sascha,
> 
> in case of OF_DYNAMIC enabled of_parse_phandle() requires of_node_put(),
> which is fine to place right here.
> 
> > +	if (auxadc_phys_base == OF_BAD_ADDR) {
> > +		dev_err(&pdev->dev, "Can't get auxadc phys address\n");
> > +		return -EINVAL;
> > +	}
> > +
> 
> [snip]
> 
> > +
> > +	/*
> > +	 * These calibration values should finally be provided by the
> > +	 * firmware or fuses. For now use default values.
> > +	 */
> > +	mt->calib_slope = -123;
> > +	mt->calib_offset = 465124;
> > +
> > +	for (i = 0; i < MT8173_NUM_ZONES; i++)
> > +		mtk_thermal_init_bank(mt, i, apmixed_phys_base, auxadc_phys_base);
> > +
> > +	platform_set_drvdata(pdev, mt);
> > +
> > +	for (i = 0; i < MT8173_NUM_ZONES; i++) {
> > +		struct mtk_thermal_bank *bank = &mt->banks[i];
> > +
> > +		bank->tzd = thermal_zone_of_sensor_register(&pdev->dev, i, bank,
> > +				&mtk_thermal_ops);
> 
> I would propose to add return value checks here, otherwise there might
> be an oops in mtk_thermal_remove(), if something goes wrong.

Thanks for the input. I'll fix that in the next round.

Sascha

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