From mboxrd@z Thu Jan  1 00:00:00 1970
From: Lyude <cpaul@redhat.com>
Subject: [PATCH] drm/i915: Fix race condition in
 intel_dp_destroy_mst_connector()
Date: Wed, 16 Mar 2016 15:18:04 -0400
Message-ID: <1458155884-13877-1-git-send-email-cpaul@redhat.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <dri-devel-bounces@lists.freedesktop.org>
List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/dri-devel>,
 <mailto:dri-devel-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <https://lists.freedesktop.org/archives/dri-devel>
List-Post: <mailto:dri-devel@lists.freedesktop.org>
List-Help: <mailto:dri-devel-request@lists.freedesktop.org?subject=help>
List-Subscribe: <https://lists.freedesktop.org/mailman/listinfo/dri-devel>,
 <mailto:dri-devel-request@lists.freedesktop.org?subject=subscribe>
Errors-To: dri-devel-bounces@lists.freedesktop.org
Sender: "dri-devel" <dri-devel-bounces@lists.freedesktop.org>
To: intel-gfx@lists.freedesktop.org
Cc: Rob Clark <rclark@redhat.com>, "open list:INTEL DRM DRIVERS excluding Poulsbo, Moorestow...,
 linux-kernel@vger.kernel.org open list" <dri-devel@lists.freedesktop.org>, stable@vger.kernel.org, Daniel Vetter <daniel.vetter@intel.com>, Lyude <cpaul@redhat.com>
List-Id: intel-gfx@lists.freedesktop.org
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