linux-kernel - Re: drivers: Probable misuses of ||

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Message-ID: <20120504235630.6b79d938@pyramind.ukuu.org.uk>
Date:	Fri, 4 May 2012 23:56:30 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Joe Perches <joe@...ches.com>
Cc:	Mauro Carvalho Chehab <mchehab@...radead.org>,
	"James E.J. Bottomley" <JBottomley@...allels.com>,
	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: drivers: Probable misuses of ||

On Fri, 04 May 2012 14:54:37 -0700
Joe Perches <joe@...ches.com> wrote:

> On Wed, 2012-04-04 at 16:00 -0700, Joe Perches wrote:
> > Likely these should be && not ||
> > 
> > drivers/scsi/FlashPoint.c:				if(bit_cnt != 0 || bit_cnt != 8)
> 
> It's been a month.
> 
> Do you maintainers not care about these obvious defects?

You are assuming the code in question has maintainers. FlashPoint hasn't
really had a maintainer since Leonard died. Also given it's been like
that for approaching twenty years and works there is a real danger in
changing it unless the patch is tested carefully - if you can find anyone
with the hardware.

It's not unknown for code to work *because* it is wrong.

Alan
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