From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754893AbXDZTBO (ORCPT ); Thu, 26 Apr 2007 15:01:14 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754924AbXDZTBO (ORCPT ); Thu, 26 Apr 2007 15:01:14 -0400 Received: from DENETHOR.UNI-MUENSTER.DE ([128.176.180.180]:56677 "EHLO denethor.uni-muenster.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754893AbXDZTBM (ORCPT ); Thu, 26 Apr 2007 15:01:12 -0400 X-Greylist: delayed 1437 seconds by postgrey-1.27 at vger.kernel.org; Thu, 26 Apr 2007 15:01:12 EDT Date: Thu, 26 Apr 2007 20:25:19 +0200 From: Borislav Petkov To: Andrew Morton Cc: linux-kernel@vger.kernel.org Subject: [PATCH] mm/memory.c: remove warning from an uninitialized spinlock. was: Re: 2.6.21-rc7-mm2 Message-ID: <20070426182519.GA4532@gollum.tnic> Reply-To: bbpetkov@yahoo.de References: <20070425225716.8e9b28ca.akpm@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20070425225716.8e9b28ca.akpm@linux-foundation.org> User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Remove build warning mm/memory.c:1491: warning: 'ptl' may be used uninitialized in this function. The spinlock pointer is assigned to null since it gets overwritten right away in pte_alloc_map_lock(). Signed-off-by: Borislav Petkov --- Index: linux-mm/mm/memory.c =================================================================== --- linux-mm.orig/mm/memory.c 2007-04-26 19:57:14.000000000 +0200 +++ linux-mm/mm/memory.c 2007-04-26 20:00:30.000000000 +0200 @@ -1488,7 +1488,7 @@ pte_t *pte; int err; struct page *pmd_page; - spinlock_t *ptl; + spinlock_t *ptl = NULL; pte = (mm == &init_mm) ? pte_alloc_kernel(pmd, addr) : -- Regards/Gruß, Boris.