linux-kernel - Re: leds: just ignore invalid GPIOs in leds-gpio

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Date:	Wed, 08 Apr 2009 14:09:45 +0100
From:	Richard Purdie <rpurdie@...ux.intel.com>
To:	David Brownell <david-b@...bell.net>
Cc:	Geert Uytterhoeven <Geert.Uytterhoeven@...ycom.com>,
	Linux Kernel Development <linux-kernel@...r.kernel.org>
Subject: Re: leds: just ignore invalid GPIOs in leds-gpio


On Tue, 2009-04-07 at 17:51 -0700, David Brownell wrote:
> On Tuesday 07 April 2009, Geert Uytterhoeven wrote:
> > | drivers/leds/leds-gpio.c:85: warning: 'return' with no value, in function
> > | returning non-void
> > 
> > So what should we return here? -ENODEV? -EINVAL? Anything else?
> 
> Success:  0.  The point is to ignore them, not fail!
> 
> 
> See the appended.

Agreed. I wondered about returning ENODEV and then catching it in the
calling functions but that doesn't work out as very clear code. I'll
queue and submit this.

Cheers,

Richard


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