From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756042Ab1BUNoQ (ORCPT ); Mon, 21 Feb 2011 08:44:16 -0500 Received: from www.tglx.de ([62.245.132.106]:54066 "EHLO www.tglx.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756019Ab1BUNoP (ORCPT ); Mon, 21 Feb 2011 08:44:15 -0500 Date: Mon, 21 Feb 2011 14:43:56 +0100 (CET) From: Thomas Gleixner To: Yinghai Lu cc: linux-kernel@vger.kernel.org, mingo@redhat.com, hpa@zytor.com, linux-tip-commits@vger.kernel.org Subject: Re: [tip:irq/core] genirq: Make nr_irqs runtime expandable In-Reply-To: Message-ID: References: <4D6014F9.8040605@kernel.org> User-Agent: Alpine 2.00 (LFD 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 21 Feb 2011, Thomas Gleixner wrote: > On Sat, 19 Feb 2011, Yinghai Lu wrote: > > - if (start >= nr_irqs) { > > + if (start + cnt > nr_irqs) { > > One off. That needs to be >= nr_irqs. Good catch otherwise. Confused myself. Check is correct as is.