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

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Message-ID: <18465.16592.41821.225568@cargo.ozlabs.ibm.com>
Date:	Wed, 7 May 2008 15:40:32 +1000
From:	Paul Mackerras <paulus@...ba.org>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Arjan van de Ven <arjan@...radead.org>,
	David Miller <davem@...emloft.net>, tony@...eyournoodle.com,
	linux-kernel@...r.kernel.org, benh@...nel.crashing.org
Subject: Re: [PATCH] Silence 'ignoring return value' warnings in
 drivers/video/aty/radeon_base.c

Andrew Morton writes:

> On Tue, 6 May 2008 21:00:55 -0700 Arjan van de Ven <arjan@...radead.org> wrote:
> > can we make it a WARN_ON() as well? that way we'll see it in various
> > kerneloops.org stats etc etc.. and we also get a nice backtrace for
> > free to go with it....
> > 
> > (rationale: users tend to not read their dmesg much, but WARN_ON()'s do
> > get noticed)
> 
> OK by me, although if we're going to do much more of this it might be time
> to add a WARN_ON which takes (fmt, args...).

It would make a lot more sense to put the printk and/or WARN_ON inside
sysfs_create_bin_file rather than in every single caller.

Paul.
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