linux-kernel - Re: [PATCH v7 01/10] ARM: davinci: move private EDMA API to arm/common

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Message-ID: <20130209200850.GK17852@n2100.arm.linux.org.uk>
Date:	Sat, 9 Feb 2013 20:08:50 +0000
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Sekhar Nori <nsekhar@...com>
Cc:	Matt Porter <mporter@...com>, Tony Lindgren <tony@...mide.com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Benoit Cousson <b-cousson@...com>,
	Vinod Koul <vinod.koul@...el.com>,
	Rob Landley <rob@...dley.net>, Chris Ball <cjb@...top.org>,
	Devicetree Discuss <devicetree-discuss@...ts.ozlabs.org>,
	Linux OMAP List <linux-omap@...r.kernel.org>,
	Linux ARM Kernel List <linux-arm-kernel@...ts.infradead.org>,
	Linux DaVinci Kernel List 
	<davinci-linux-open-source@...ux.davincidsp.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux Documentation List <linux-doc@...r.kernel.org>,
	Linux MMC List <linux-mmc@...r.kernel.org>,
	Linux SPI Devel List 
	<spi-devel-general@...ts.sourceforge.net>,
	Arnd Bergmann <arnd@...db.de>, Dan Williams <djbw@...com>,
	Rob Herring <rob.herring@...xeda.com>
Subject: Re: [PATCH v7 01/10] ARM: davinci: move private EDMA API to
	arm/common

On Sat, Feb 09, 2013 at 09:35:53PM +0530, Sekhar Nori wrote:
> On 2/1/2013 11:52 PM, Matt Porter wrote:
> > +	ret = of_address_to_resource(node, 1, &res);
> 
> of_address_to_resource() needs <linux/of_address.h>
> 
> > +	if (IS_ERR_VALUE(ret))
> 
> This needs <linux/err.h>

More importantly, is this the correct way to check for errors from
of_address_to_resource() ?  Grepping the source shows that either less
than 0 or non-zero are the commonly used conditions here.
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