From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754044Ab0BHSnw (ORCPT ); Mon, 8 Feb 2010 13:43:52 -0500 Received: from mail-bw0-f219.google.com ([209.85.218.219]:64545 "EHLO mail-bw0-f219.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753977Ab0BHSnv convert rfc822-to-8bit (ORCPT ); Mon, 8 Feb 2010 13:43:51 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-type:content-transfer-encoding; b=r+JwrAOGZwgB7pa5RFKffkXjOF7C0TfzifhwNllvtvqSBHUS9cqp6cVKTrRLyaqi+0 NKgyejZjv8ZSaKWdRnrbedhXMgx7AO2HdUhwcGkj918nIxswDT+7vQA1zmboY8trobR+ bhsxPM/Li1nPshO6oq8iK8jGJMo28xnjxhGOw= MIME-Version: 1.0 In-Reply-To: <4B7036E5.7050601@gmail.com> References: <4B7036E5.7050601@gmail.com> From: roel kluin Date: Mon, 8 Feb 2010 19:43:25 +0100 Message-ID: <25e057c01002081043reb909eet70f6bb86657fbd90@mail.gmail.com> Subject: Re: FRV: possibly bad unsigned comparison in show_backtrace() To: David Howells , LKML Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Feb 8, 2010 at 5:08 PM, Roel Kluin wrote: > In arch/frv/kernel/traps.c, show_backtrace(), if sp is 0 > then the dump does not succeed because stop was set to 0 > and unaltered when we reach the unsigned comparison: > >  while (tos < stop) {...} I was mistaken, a while (tos >= stop) won't end Roel