From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C9644C31E44 for ; Fri, 14 Jun 2019 11:28:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9A5B2208CA for ; Fri, 14 Jun 2019 11:28:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Tm1TfpZU" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727486AbfFNL2V (ORCPT ); Fri, 14 Jun 2019 07:28:21 -0400 Received: from mail-pf1-f193.google.com ([209.85.210.193]:46397 "EHLO mail-pf1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727262AbfFNL2U (ORCPT ); Fri, 14 Jun 2019 07:28:20 -0400 Received: by mail-pf1-f193.google.com with SMTP id 81so1276330pfy.13 for ; Fri, 14 Jun 2019 04:28:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=T6oFXDd7RFgkDhvVzkPX+FeD473fViFpef2JxosV0BQ=; b=Tm1TfpZUG6v9dqJ7S/nLPcnNLBnUCudYbvvrro2nNlyeCF4TQk2uwU39x1Sk/qQ6G2 ccDCBEyvTxYmQplnoOReO+BeCl84+2vjjuKYS/Mp/5NqsaS3xLgg9nsGJPJES6apYWjJ sBwlJKmbueYj4cW2R0fw3IJk7GNJKZfbnkWK+IvOaStZbBQY6jNbQbgHkZVXYIwR10F1 pKdG/SESJeRKdzjy8XIKgSipH4KiO7bl8MtyYebSWvR+SqWyj/3ZnazLzd4zTrDnJ17G SHZn/5pnV6eQ46Kyk3ZWfRK0e+pdlx1zZLsbkVYotTrOdwMFnN8IbMm8wHM537Pb0ULL WYxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=T6oFXDd7RFgkDhvVzkPX+FeD473fViFpef2JxosV0BQ=; b=rJRz2yktRzh3TueT68w1KOdWrVSp6SDz4MpgRRwuOWTImUjyZvmnDbBXKz1T071Gn3 /tNvHAyYu+8VAEAqN4DG+0I/nsaNC+V6GjUgyjNzg5QMLvH7L3rRspPmCrph9ea4MZPr vWQaflB7KKaiHupsweLnr9Ij3AG0b43QtpdJbf/2lxFfjEKCFq8hwn8KutEjAnhm9iuJ lqUljByR1ZynpLRUrwMk9eEC15wHyRgtkR1ByjbyEWBdwSlO5bTuB1YlogTma3znu47M poU6hs92nNgNtC7vM+NXC1GauLRCe3V42xbMM4JVGYU1N+eDjE4xY8Xx7EKRKkTDTric 0WKw== X-Gm-Message-State: APjAAAU9GHhXGmC9h/sEFemHkcORqG63Bb6eo25EBmJosvLXC0gotkPb D2OE4+ZcnHlKo6ukOb1eN/A= X-Google-Smtp-Source: APXvYqwPYqScXoW9ZuO5k06QZdNzmPdYb8Qc3R9ESnIh+b5Es9GZM2ARs5/8AIxFKMBcfwZjbTq/4w== X-Received: by 2002:a17:90a:23a4:: with SMTP id g33mr10930800pje.115.1560511700146; Fri, 14 Jun 2019 04:28:20 -0700 (PDT) Received: from xy-data.openstacklocal ([159.138.22.150]) by smtp.gmail.com with ESMTPSA id t11sm2205147pgp.1.2019.06.14.04.28.17 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 14 Jun 2019 04:28:19 -0700 (PDT) From: Young Xiao <92siuyang@gmail.com> To: alexander.deucher@amd.com, christian.koenig@amd.com, David1.Zhou@amd.com, airlied@linux.ie, daniel@ffwll.ch, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Cc: Young Xiao <92siuyang@gmail.com> Subject: [PATCH] drm/amd: fix hotplug race at startup Date: Fri, 14 Jun 2019 19:29:23 +0800 Message-Id: <1560511763-2140-1-git-send-email-92siuyang@gmail.com> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We should check mode_config_initialized flag in amdgpu_hotplug_work_func. See commit 7f98ca454ad3 ("drm/radeon: fix hotplug race at startup") for details. Signed-off-by: Young Xiao <92siuyang@gmail.com> --- drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c index af4c3b1..13186d6 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c @@ -85,6 +85,9 @@ static void amdgpu_hotplug_work_func(struct work_struct *work) struct drm_mode_config *mode_config = &dev->mode_config; struct drm_connector *connector; + if (!adev->mode_info.mode_config_initialized) + return; + mutex_lock(&mode_config->mutex); list_for_each_entry(connector, &mode_config->connector_list, head) amdgpu_connector_hotplug(connector); -- 2.7.4