From patchwork Mon Aug 2 22:00:44 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rafael Wysocki X-Patchwork-Id: 116624 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.4/8.14.3) with ESMTP id o72M36pi020148 for ; Mon, 2 Aug 2010 22:03:06 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754060Ab0HBWDB (ORCPT ); Mon, 2 Aug 2010 18:03:01 -0400 Received: from ogre.sisk.pl ([217.79.144.158]:57764 "EHLO ogre.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755538Ab0HBWCy (ORCPT ); Mon, 2 Aug 2010 18:02:54 -0400 Received: from localhost (localhost.localdomain [127.0.0.1]) by ogre.sisk.pl (Postfix) with ESMTP id 95F8018D281; Mon, 2 Aug 2010 23:56:42 +0200 (CEST) Received: from ogre.sisk.pl ([127.0.0.1]) by localhost (ogre.sisk.pl [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 31203-01; Mon, 2 Aug 2010 23:56:16 +0200 (CEST) Received: from ferrari.localnet (220-bem-13.acn.waw.pl [82.210.184.220]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ogre.sisk.pl (Postfix) with ESMTP id 2518B18E1CC; Mon, 2 Aug 2010 23:55:59 +0200 (CEST) From: "Rafael J. Wysocki" To: Jesse Barnes Subject: [PATCH 8/8] ACPI / PCI: Reorder checks in acpi_pci_osc_control_set() Date: Tue, 3 Aug 2010 00:00:44 +0200 User-Agent: KMail/1.13.5 (Linux/2.6.35-rjw+; KDE/4.4.4; x86_64; ; ) Cc: ACPI Devel Maling List , Len Brown , linux-pm@lists.linux-foundation.org, linux-pci@vger.kernel.org, Hidetoshi Seto , Kenji Kaneshige , Matthew Garrett References: <201008022351.31406.rjw@sisk.pl> In-Reply-To: <201008022351.31406.rjw@sisk.pl> MIME-Version: 1.0 Message-Id: <201008030000.44558.rjw@sisk.pl> X-Virus-Scanned: amavisd-new at ogre.sisk.pl using MkS_Vir for Linux Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter.kernel.org [140.211.167.41]); Mon, 02 Aug 2010 22:03:06 +0000 (UTC) Index: linux-2.6/drivers/acpi/pci_root.c =================================================================== --- linux-2.6.orig/drivers/acpi/pci_root.c +++ linux-2.6/drivers/acpi/pci_root.c @@ -415,10 +415,6 @@ acpi_status acpi_pci_osc_control_set(acp acpi_handle tmp; struct acpi_pci_root *root; - status = acpi_get_handle(handle, "_OSC", &tmp); - if (ACPI_FAILURE(status)) - return status; - control_req = (flags & OSC_PCI_CONTROL_MASKS); if (!control_req) return AE_TYPE; @@ -427,6 +423,10 @@ acpi_status acpi_pci_osc_control_set(acp if (!root) return AE_NOT_EXIST; + status = acpi_get_handle(handle, "_OSC", &tmp); + if (ACPI_FAILURE(status)) + return status; + mutex_lock(&osc_lock); /* No need to evaluate _OSC if the control was already granted. */ if ((root->osc_control_set & control_req) == control_req)