From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756133AbZBDBVx (ORCPT ); Tue, 3 Feb 2009 20:21:53 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752918AbZBDBTj (ORCPT ); Tue, 3 Feb 2009 20:19:39 -0500 Received: from ogre.sisk.pl ([217.79.144.158]:42193 "EHLO ogre.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752775AbZBDBTh (ORCPT ); Tue, 3 Feb 2009 20:19:37 -0500 From: "Rafael J. Wysocki" To: Jesse Barnes Subject: [PATCH 2/7] PCI PM: Check if the state has been saved before trying to restore it Date: Wed, 4 Feb 2009 01:57:22 +0100 User-Agent: KMail/1.11.0 (Linux/2.6.29-rc2-tst; KDE/4.2.0; x86_64; ; ) Cc: Benjamin Herrenschmidt , Linus Torvalds , pm list , LKML , Linux PCI References: <200902040154.36018.rjw@sisk.pl> In-Reply-To: <200902040154.36018.rjw@sisk.pl> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200902040157.23385.rjw@sisk.pl> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Rafael J. Wysocki Check if the standard configuration registers of a PCI device have been saved during suspend before trying to restore them during resume. Signed-off-by: Rafael J. Wysocki Reported-By: Benjamin Herrenschmidt --- drivers/pci/pci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: linux-2.6/drivers/pci/pci.c =================================================================== --- linux-2.6.orig/drivers/pci/pci.c +++ linux-2.6/drivers/pci/pci.c @@ -1421,7 +1421,7 @@ int pci_restore_standard_config(struct p dev->current_state = PCI_D0; Restore: - return pci_restore_state(dev); + return dev->state_saved ? pci_restore_state(dev) : 0; } /**