From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752531AbbASSVg (ORCPT ); Mon, 19 Jan 2015 13:21:36 -0500 Received: from aserp1040.oracle.com ([141.146.126.69]:47918 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751924AbbASSVf (ORCPT ); Mon, 19 Jan 2015 13:21:35 -0500 Date: Mon, 19 Jan 2015 21:20:47 +0300 From: Dan Carpenter To: Brian Norris Cc: SF Markus Elfring , David Woodhouse , Kyungmin Park , linux-mtd@lists.infradead.org, LKML , kernel-janitors@vger.kernel.org, Julia Lawall Subject: Re: [PATCH] MTD: Deletion of checks before the function call "iounmap" Message-ID: <20150119182047.GG6456@mwanda> References: <530CD2C4.4050903@users.sourceforge.net> <530CF8FF.8080600@users.sourceforge.net> <530DD06F.4090703@users.sourceforge.net> <5317A59D.4@users.sourceforge.net> <54BBE87C.9020705@users.sourceforge.net> <20150119175835.GH9759@ld-irv-0074> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150119175835.GH9759@ld-irv-0074> User-Agent: Mutt/1.5.21 (2010-09-15) X-Source-IP: ucsinet22.oracle.com [156.151.31.94] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The sparc iounmap() implementation in arch/sparc/kernel/ioport.c looks it prints an error message if you pass a NULL pointer. regards, dan carpenter