linux-kernel - Re: [PATCH] sns: add syscall to check signed state of a process [4/4]

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Message-ID: <Pine.LNX.4.64.0706232002110.11964@fbirervta.pbzchgretzou.qr>
Date:	Sat, 23 Jun 2007 20:03:00 +0200 (CEST)
From:	Jan Engelhardt <jengelh@...putergmbh.de>
To:	Alexander Wuerstlein <snalwuer@....informatik.uni-erlangen.de>
cc:	Akinobu Mita <akinobu.mita@...il.com>,
	Alexander Wuerstlein <arw@....name>,
	linux-kernel@...r.kernel.org,
	Johannes Schlumberger <spjsschl@...d.informatik.uni-erlangen.de>
Subject: Re: [PATCH] sns: add syscall to check signed state of a process
 [4/4]


On Jun 21 2007 18:49, Alexander Wuerstlein wrote:
>
>You seem to be right, the rest of the kernel just does 'if (!t)'. We just used
>IS_ERR() as the 'check for evil pointers' function.

But NULL is not covered by IS_ERR.


	Jan
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