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Message-ID: <4816BEC8.1080708@davidnewall.com>
Date: Tue, 29 Apr 2008 15:53:04 +0930
From: David Newall <davidn@davidnewall.com>
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To: Cyrill Gorcunov <gorcunov@gmail.com>
CC: Ingo Molnar <mingo@elte.hu>, "H. Peter Anvin" <hpa@zytor.com>,
       Markus Metzger <markus.t.metzger@intel.com>,
       LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] x86: DS cleanup - dont treat 0 as NULL
References: <20080428191504.GA6842@cvg>
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Cyrill Gorcunov wrote:
> -			return 0;
> +			return NULL;

Why?  The constant 0 is C's official symbol for a null pointer.