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

From: Ben Dooks
Date: Mon Dec 15 2008 - 05:15:58 EST


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@xxxxxxxxx, http://www.fluff.org/)

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