From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754162AbYDIKI5 (ORCPT ); Wed, 9 Apr 2008 06:08:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752657AbYDIKIr (ORCPT ); Wed, 9 Apr 2008 06:08:47 -0400 Received: from smtp-out2.tiscali.nl ([195.241.79.177]:52440 "EHLO smtp-out2.tiscali.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752630AbYDIKIq (ORCPT ); Wed, 9 Apr 2008 06:08:46 -0400 Message-ID: <47FC95AD.1070907@tiscali.nl> Date: Wed, 09 Apr 2008 12:08:45 +0200 From: Roel Kluin <12o3l@tiscali.nl> User-Agent: Thunderbird 2.0.0.9 (X11/20071031) MIME-Version: 1.0 To: linux-mm@kvack.org, lkml Subject: [PATCH] pagewalk: don't pte_unmap(NULL) in walk_pte_range() Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is right isn't it? --- Don't pte_unmap a NULL pointer, but the previous. Signed-off-by: Roel Kluin <12o3l@tiscali.nl> --- diff --git a/mm/pagewalk.c b/mm/pagewalk.c index 1cf1417..6615f0b 100644 --- a/mm/pagewalk.c +++ b/mm/pagewalk.c @@ -15,7 +15,7 @@ static int walk_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end, break; } while (pte++, addr += PAGE_SIZE, addr != end); - pte_unmap(pte); + pte_unmap(pte - 1); return err; }