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Date: Fri, 7 Oct 2011 11:06:15 +0100
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: "G, Manjunath Kondaiah" <manjugk@ti.com>
Cc: linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org,
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        Mark Brown <broonie@opensource.wolfsonmicro.com>,
        Manjunath GKondaiah <manjunath.gkondaiah@linaro.org>,
        Arnd Bergmann <arnd@arndb.de>
Subject: Re: [PATCH 4/5] gpiolib: handle deferral probe error
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On Fri, 07 Oct 2011 10:33:09 +0500
"G, Manjunath Kondaiah" <manjugk@ti.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.