From mboxrd@z Thu Jan  1 00:00:00 1970
From: Russell King - ARM Linux <linux@arm.linux.org.uk>
Subject: Re: [PATCH, v2] input/imx2x: generic keypad handler for i.MX SoCs
Date: Sat, 18 Apr 2009 08:51:04 +0100
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References: <200904171640.14294.hs4233@mail.mn-solutions.de> <18920.42140.160633.645220@ipc1.ka-ro> <200904172123.18096.hs4233@mail.mn-solutions.de>
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To: Holger Schurig <hs4233@mail.mn-solutions.de>
Cc: Lothar =?iso-8859-1?Q?Wa=DFmann?= <LW@karo-electronics.de>, linux-input@vger.kernel.org, s.hauer@pengutronix.de, linux-arm-kernel@lists.arm.linux.org.uk

On Fri, Apr 17, 2009 at 09:23:17PM +0200, Holger Schurig wrote:
> > Why do you invent your own error code instead of reporting the
> > error that clk_get() returned?
> 
> You're total right, I should have known better :-)
> 
> 
> This error happens so often, not only by me, that I think the 
> clk_get should actually simply return NULL.

We have implementations which have only a single clock, and return NULL
as a valid clock.