linux-kernel - Re: [PATCH 4/5] gpiolib: handle deferral probe error

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Message-ID: <20111007110615.7638e905@lxorguk.ukuu.org.uk>
Date:	Fri, 7 Oct 2011 11:06:15 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	"G, Manjunath Kondaiah" <manjugk@...com>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-omap@...r.kernel.org,
	linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
	Grant Likely <grant.likely@...retlab.ca>,
	Greg Kroah-Hartman <greg@...ah.com>,
	Dilan Lee <dilee@...dia.com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Manjunath GKondaiah <manjunath.gkondaiah@...aro.org>,
	Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH 4/5] gpiolib: handle deferral probe error

On Fri, 07 Oct 2011 10:33:09 +0500
"G, Manjunath Kondaiah" <manjugk@...com> wrote:

> 
> The gpio library should return -EPROBE_DEFER in gpio_request
> if gpio driver is not ready.

Why not use the perfectly good existing error codes we have for this ?

We have EAGAIN and EUNATCH both of which look sensible.
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