From patchwork Mon Dec 14 03:24:18 2009
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Zhang Rui <rui.zhang@intel.com>
X-Patchwork-Id: 67180
Received: from vger.kernel.org (vger.kernel.org [209.132.180.67])
	by demeter.kernel.org (8.14.2/8.14.2) with ESMTP id nBE3ML8P003742
	for <patchwork-acpi@patchwork.kernel.org>;
	Mon, 14 Dec 2009 03:22:21 GMT
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S932181AbZLNDWU (ORCPT
	<rfc822;patchwork-acpi@patchwork.kernel.org>);
	Sun, 13 Dec 2009 22:22:20 -0500
Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932187AbZLNDWU
	(ORCPT <rfc822;linux-acpi-outgoing>);
	Sun, 13 Dec 2009 22:22:20 -0500
Received: from mga14.intel.com ([143.182.124.37]:26230 "EHLO mga14.intel.com"
	rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
	id S932181AbZLNDWT (ORCPT <rfc822;linux-acpi@vger.kernel.org>);
	Sun, 13 Dec 2009 22:22:19 -0500
Received: from azsmga001.ch.intel.com ([10.2.17.19])
	by azsmga102.ch.intel.com with ESMTP; 13 Dec 2009 19:22:19 -0800
X-ExtLoop1: 1
X-IronPort-AV: E=Sophos;i="4.47,316,1257148800"; d="scan'208";a="222400501"
Received: from rzhang1-desktop.sh.intel.com (HELO [10.239.36.117])
	([10.239.36.117])
	by azsmga001.ch.intel.com with ESMTP; 13 Dec 2009 19:22:17 -0800
Subject: [PATCH] ACPI: add kernel tainting after overriding an ACPI control
	method
From: Zhang Rui <rui.zhang@intel.com>
To: Len Brown <lenb@kernel.org>
Cc: "linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>,
	Thomas Renninger <trenn@suse.de>, "Zhang, Rui" <rui.zhang@intel.com>
Date: Mon, 14 Dec 2009 11:24:18 +0800
Message-ID: <1260761058.27069.329.camel@rzhang1-desktop>
Mime-Version: 1.0
X-Mailer: Evolution 2.28.1 
Sender: linux-acpi-owner@vger.kernel.org
Precedence: bulk
List-ID: <linux-acpi.vger.kernel.org>
X-Mailing-List: linux-acpi@vger.kernel.org


Index: linux-2.6/drivers/acpi/debug.c
===================================================================
--- linux-2.6.orig/drivers/acpi/debug.c
+++ linux-2.6/drivers/acpi/debug.c
@@ -239,6 +239,7 @@ static ssize_t cm_write(struct file *fil
 		kfree(buf);
 		if (ACPI_FAILURE(status))
 			return -EINVAL;
+		add_taint(TAINT_OVERRIDDEN_ACPI_TABLE);
 	}
 
 	return count;