linux-kernel - Re: [RFC PATCH v3] drivercore: Add driver probe deferral mechanism

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Date:	Tue, 27 Sep 2011 23:13:10 +0100
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Grant Likely <grant.likely@...retlab.ca>
Cc:	Arnd Bergmann <arnd@...db.de>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	Greg Kroah-Hartman <greg@...ah.com>,
	linux-kernel@...r.kernel.org,
	Manjunath GKondaiah <manjunath.gkondaiah@...aro.org>,
	Dilan Lee <dilee@...dia.com>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [RFC PATCH v3] drivercore: Add driver probe deferral mechanism

On Tue, Sep 27, 2011 at 03:08:49PM -0600, Grant Likely wrote:

> Okay, will do.  How does EPROBE_DEFER 518 sound?

Note that I'm not sure this answers the issue I was raising - the issue
isn't that the caller doesn't know what the error code means, the issue
is that in some cases the driver needs to take a decision about what
failure to get a resource means.  Does it mean that the driver can work
fine and be slightly less featureful or should it cause a deferral?
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