linux-kernel - Re: [PATCH] staging: comedi: serial2002: quiet NULL pointer sparse noise

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Message-ID: <4FD19FBB.4040507@mev.co.uk>
Date:	Fri, 8 Jun 2012 07:46:19 +0100
From:	Ian Abbott <abbotti@....co.uk>
To:	H Hartley Sweeten <hartleys@...ionengravers.com>
CC:	Linux Kernel <linux-kernel@...r.kernel.org>,
	"devel@...verdev.osuosl.org" <devel@...verdev.osuosl.org>,
	Ian Abbott <ian.abbott@....co.uk>,
	"fmhess@...rs.sourceforge.net" <fmhess@...rs.sourceforge.net>,
	"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>
Subject: Re: [PATCH] staging: comedi: serial2002: quiet NULL pointer sparse
 noise

On 08/06/12 01:14, H Hartley Sweeten wrote:
> Quiet a number of sparse warnings in this file:
>
> warning: Using plain integer as NULL pointer

I wonder why sparse warns about that for a literal, unadorned 0?  I 
suppose NULL is more explicit, but a plain 0 means the same as NULL in a 
pointer context (unlike a zero from some random expression).

-- 
-=( Ian Abbott @ MEV Ltd.    E-mail: <abbotti@....co.uk>        )=-
-=( Tel: +44 (0)161 477 1898   FAX: +44 (0)161 718 3587         )=-
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