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From: Ian Abbott <abbotti@mev.co.uk>
To: H Hartley Sweeten <hartleys@visionengravers.com>
Cc: Linux Kernel <linux-kernel@vger.kernel.org>,
	"devel@driverdev.osuosl.org" <devel@driverdev.osuosl.org>,
	Ian Abbott <ian.abbott@mev.co.uk>,
	"fmhess@users.sourceforge.net" <fmhess@users.sourceforge.net>,
	"gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>
Subject: Re: [PATCH] staging: comedi: serial2002: quiet NULL pointer sparse noise
Date: Fri, 8 Jun 2012 07:46:19 +0100	[thread overview]
Message-ID: <4FD19FBB.4040507@mev.co.uk> (raw)
In-Reply-To: <201206071714.25934.hartleys@visionengravers.com>

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@mev.co.uk>        )=-
-=( Tel: +44 (0)161 477 1898   FAX: +44 (0)161 718 3587         )=-

  reply	other threads:[~2012-06-08  6:45 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-08  0:14 [PATCH] staging: comedi: serial2002: quiet NULL pointer sparse noise H Hartley Sweeten
2012-06-08  6:46 ` Ian Abbott [this message]
2012-06-08  6:51   ` Dan Carpenter
2012-06-08  9:07     ` Ian Abbott
2012-06-08  9:48       ` Dan Carpenter

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