linux-kernel - Re: GPIO: Fix probe() error return in gpio driver probes

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Message-ID: <20081215101524.GA12431@fluff.org.uk>
Date:	Mon, 15 Dec 2008 10:15:25 +0000
From:	Ben Dooks <ben-linux@...ff.org>
To:	David Brownell <david-b@...bell.net>
Cc:	Ben Dooks <ben-linux@...ff.org>, linux-kernel@...r.kernel.org,
	linux-i2c@...r.kernel.org
Subject: Re: GPIO: Fix probe() error return in gpio driver probes

On Sun, Dec 14, 2008 at 04:11:17PM -0800, David Brownell wrote:
> On Sunday 14 December 2008, Ben Dooks wrote:
> > Has anyone reveiwed this patch? Are there any comments, or can this
> > be commited at somepoint (even if it is during the next merge window)?
> 
> I was thinking that -EINVAL is almost the least informative
> diagnostic code possible, since so many places return it
> that it's usually hard to find out *which* invalid parameter
> triggered ...
> 
> Is there a less-overloaded code you could return?

The only other ones that I think would be close are:

       ENOTSUP         Operation not supported (POSIX.1)
       EPROTO          Protocol error (POSIX.1)
       ENOENT	       No such file or directory
       EFAULT	       Bad address

Feedback welcone.
 
> I have no issue with the patch other than that.
> 
> - Dave
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Ben (ben@...ff.org, http://www.fluff.org/)

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