linux-kernel - Re: [git patches] two warning fixes

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Message-ID: <m3644e2abd.fsf@maximus.localdomain>
Date:	Fri, 20 Jul 2007 20:34:46 +0200
From:	Krzysztof Halasa <khc@...waw.pl>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Jeff Garzik <jeff@...zik.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>, ak@...e.de,
	adaplas@...il.com, linux-fbdev-devel@...ts.sourceforge.net,
	benh@...nel.crashing.org
Subject: Re: [git patches] two warning fixes

Linus Torvalds <torvalds@...ux-foundation.org> writes:

> More people *should* generally ask themselves: "was the warning worth it?" 
> and then, if the answer is "no", they shouldn't add code, they should 
> remove the thing that causes the warning in the first place.

Sure. If a routine uses must_check yet its return value may be
safely ignored then that must_check is simply misplaced and should
be removed. It does not mean all must_checks are bad - each of them
isn't bad unless one can demonstrate it is.

Back to sysfs_create_bin_file() - if one can demonstrate a caller
can safely ignore the return value (which, it seems, is the
case), then exactly this very must_check should be removed.
-- 
Krzysztof Halasa
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