From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752797Ab0JMKKD (ORCPT ); Wed, 13 Oct 2010 06:10:03 -0400 Received: from smtp.nokia.com ([192.100.122.230]:65438 "EHLO mgw-mx03.nokia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752569Ab0JMKKA (ORCPT ); Wed, 13 Oct 2010 06:10:00 -0400 From: Evgeny Kuznetsov To: tony@atomide.com Cc: linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, balbi@ti.com, linux@arm.linux.org.uk, khilman@deeprootsystems.com, akpm@linux-foundation.org, charu@ti.com, tero.kristo@nokia.com, ext-eugeny.kuznetsov@nokia.com Subject: [PATCHv2 0/1] omap: Ptr "isr_reg" tracked as NULL was dereferenced Date: Wed, 13 Oct 2010 14:04:49 +0400 Message-Id: X-Mailer: git-send-email 1.6.3.3 X-OriginalArrivalTime: 13 Oct 2010 10:08:36.0410 (UTC) FILETIME=[99A2B9A0:01CB6ABE] X-Nokia-AV: Unscannable Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Here is second version of patch which fixes bug in /arch/arm/plat-omap/gpio.c file. Pointer which may have NULL value in some cases (depend on kernel configuration and GPIO method) is dereferenced later in code. I removed BUG() macro to do not halt code execution accoding to comments. And added WARN_ON() macro and exit from function if pointer "isr_reg" is NULL. Also compilation check is added for correct architecture configuration. Thanks, Evgeny Evgeny Kuznetsov (1): omap: Ptr "isr_reg" tracked as NULL was dereferenced arch/arm/plat-omap/gpio.c | 18 ++++++++++++++++++ 1 files changed, 18 insertions(+), 0 deletions(-)