linux-kernel - Re: [PATCH] Silence 'ignoring return value' warnings in drivers/video/aty/radeon

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Date:	Thu, 08 May 2008 17:49:44 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Cornelia Huck <cornelia.huck@...ibm.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	David Miller <davem@...emloft.net>, tony@...eyournoodle.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Silence 'ignoring return value' warnings in
	drivers/video/aty/radeon_base.c


On Thu, 2008-05-08 at 09:34 +0200, Cornelia Huck wrote:
> 
> I was under the impression that failing the initialization was usually
> the right thing to do, since we end up with an un-configurable,
> un-usable device. But that may be coloured by my experience with s390
> devices, where we rely on sysfs attributes extensively. If indeed most
> sysfs files are non-vital, removing the __must_check and relying on a
> scary warning in the core may be fine. (OTOH, adding checks to the
> core
> has helped us to find some lurking bugs.)

The driver can still fail initialization if it wants... I'm just
objecting to the __must_check.

Ben.


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