From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752551AbbJTAtK (ORCPT ); Mon, 19 Oct 2015 20:49:10 -0400 Received: from mail.kernel.org ([198.145.29.136]:54257 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752444AbbJTAtG (ORCPT ); Mon, 19 Oct 2015 20:49:06 -0400 From: lizf@kernel.org To: stable@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Alex Deucher , Zefan Li Subject: [PATCH 3.4 11/65] drm/radeon: take the mode_config mutex when dealing with hpds (v2) Date: Tue, 20 Oct 2015 08:47:21 +0800 Message-Id: <1445302095-4695-11-git-send-email-lizf@kernel.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1445302030-4607-1-git-send-email-lizf@kernel.org> References: <1445302030-4607-1-git-send-email-lizf@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Alex Deucher 3.4.110-rc1 review patch. If anyone has any objections, please let me know. ------------------ commit 39fa10f7e21574a70cecf1fed0f9b36535aa68a0 upstream. Since we are messing with state in the worker. v2: drop the changes in the mst worker Signed-off-by: Alex Deucher Signed-off-by: Zefan Li --- drivers/gpu/drm/radeon/radeon_irq_kms.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c index 645dcbf..77c456d 100644 --- a/drivers/gpu/drm/radeon/radeon_irq_kms.c +++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c @@ -51,10 +51,12 @@ static void radeon_hotplug_work_func(struct work_struct *work) struct drm_mode_config *mode_config = &dev->mode_config; struct drm_connector *connector; + mutex_lock(&mode_config->mutex); if (mode_config->num_connector) { list_for_each_entry(connector, &mode_config->connector_list, head) radeon_connector_hotplug(connector); } + mutex_unlock(&mode_config->mutex); /* Just fire off a uevent and let userspace tell us what to do */ drm_helper_hpd_irq_event(dev); } -- 1.9.1