From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754585Ab3EZP67 (ORCPT ); Sun, 26 May 2013 11:58:59 -0400 Received: from mail-pa0-f48.google.com ([209.85.220.48]:56799 "EHLO mail-pa0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754380Ab3EZP64 (ORCPT ); Sun, 26 May 2013 11:58:56 -0400 From: Jiang Liu To: Bjorn Helgaas , Yinghai Lu Cc: Jiang Liu , "Rafael J . Wysocki" , Greg Kroah-Hartman , Gu Zheng , Toshi Kani , Myron Stowe , Yijing Wang , Jiang Liu , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, David Airlie , dri-devel@lists.freedesktop.org Subject: [PATCH v3, part2 14/20] PCI, DRM: use hotplug-safe iterators to walk PCI buses Date: Sun, 26 May 2013 23:53:11 +0800 Message-Id: <1369583597-3801-15-git-send-email-jiang.liu@huawei.com> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1369583597-3801-1-git-send-email-jiang.liu@huawei.com> References: <1369583597-3801-1-git-send-email-jiang.liu@huawei.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Enhance DRM drvier to use hotplug-safe iterators to walk PCI buses. Signed-off-by: Jiang Liu Cc: David Airlie Cc: dri-devel@lists.freedesktop.org Cc: linux-kernel@vger.kernel.org --- drivers/gpu/drm/drm_fops.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c index 429e07d..dc8c40b 100644 --- a/drivers/gpu/drm/drm_fops.c +++ b/drivers/gpu/drm/drm_fops.c @@ -359,9 +359,11 @@ static int drm_open_helper(struct inode *inode, struct file *filp, pci_dev_put(pci_dev); } if (!dev->hose) { - struct pci_bus *b = pci_bus_b(pci_root_buses.next); - if (b) + struct pci_bus *b = pci_get_next_root_bus(NULL); + if (b) { dev->hose = b->sysdata; + pci_bus_put(b); + } } } #endif -- 1.8.1.2