linux-kernel - Re: [PATCH 10/10] hwmon: vexpress: Use devm helper for hwmon device registration

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Date:	Wed, 30 Apr 2014 16:33:58 +0100
From:	Pawel Moll <pawel.moll@....com>
To:	Guenter Roeck <linux@...ck-us.net>
Cc:	"grant.likely@...aro.org" <grant.likely@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Lee Jones <lee.jones@...aro.org>,
	Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Russell King <linux@....linux.org.uk>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"arm@...nel.org" <arm@...nel.org>, Jean Delvare <jdelvare@...e.de>,
	"lm-sensors@...sensors.org" <lm-sensors@...sensors.org>
Subject: Re: [PATCH 10/10] hwmon: vexpress: Use devm helper for hwmon device
 registration

On Wed, 2014-04-30 at 16:27 +0100, Guenter Roeck wrote:
> > I'm not sure I understand the question. The other patch from the series
> 
> The code above seems to change from
> 
>    	data->reg = devm_regmap_init_vexpress_config(&pdev->dev);
> 	if (!data->reg)
> 		return -ENODEV;
> 
> to
> 
>    	data->reg = devm_regmap_init_vexpress_config(&pdev->dev);
> 	if (IS_ERR(data->reg))
> 		return PTR_ERR(data->reg);
> 
> as part of this patch. This suggests that the return value from
> devm_regmap_init_vexpress_config may have changed from NULL to 
> ERR_PTR. Is my understanding wrong ?

No, you've got it right, but it's me making a mistake in patch splitting
- it is supposed to be a part of the first patch. Thanks for spotting
this!

Pawel

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