From patchwork Fri Dec 14 01:25:35 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lyude Paul X-Patchwork-Id: 10730237 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id F363014E2 for ; Fri, 14 Dec 2018 01:26:57 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E2D73285BE for ; Fri, 14 Dec 2018 01:26:57 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D43C12CCB7; Fri, 14 Dec 2018 01:26:57 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=unavailable version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 9FC00285BE for ; Fri, 14 Dec 2018 01:26:57 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 255296F2BF; Fri, 14 Dec 2018 01:26:50 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3D29A6F234; Fri, 14 Dec 2018 01:26:45 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id A530230001E1; Fri, 14 Dec 2018 01:26:44 +0000 (UTC) Received: from malachite.bss.redhat.com (dhcp-10-20-1-11.bss.redhat.com [10.20.1.11]) by smtp.corp.redhat.com (Postfix) with ESMTP id 446EF6012B; Fri, 14 Dec 2018 01:26:43 +0000 (UTC) From: Lyude Paul To: dri-devel@lists.freedesktop.org, nouveau@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, amd-gfx@lists.freedesktop.org Date: Thu, 13 Dec 2018 20:25:35 -0500 Message-Id: <20181214012604.13746-7-lyude@redhat.com> In-Reply-To: <20181214012604.13746-1-lyude@redhat.com> References: <20181214012604.13746-1-lyude@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.45]); Fri, 14 Dec 2018 01:26:44 +0000 (UTC) Subject: [Intel-gfx] [WIP PATCH 06/15] drm/i915: Keep malloc references to MST ports X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: David Airlie , linux-kernel@vger.kernel.org, Jerry Zuo , Rodrigo Vivi , Harry Wentland Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP So that the ports stay around until we've destroyed the connectors, in order to ensure that we don't pass an invalid pointer to any MST helpers once we introduce the new MST VCPI helpers. Signed-off-by: Lyude Paul --- drivers/gpu/drm/i915/intel_connector.c | 4 ++++ drivers/gpu/drm/i915/intel_dp_mst.c | 2 ++ 2 files changed, 6 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_connector.c b/drivers/gpu/drm/i915/intel_connector.c index 18e370f607bc..37d2c644f4b8 100644 --- a/drivers/gpu/drm/i915/intel_connector.c +++ b/drivers/gpu/drm/i915/intel_connector.c @@ -95,6 +95,10 @@ void intel_connector_destroy(struct drm_connector *connector) intel_panel_fini(&intel_connector->panel); drm_connector_cleanup(connector); + + if (intel_connector->port) + drm_dp_mst_put_port_malloc(intel_connector->port); + kfree(connector); } diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c index f05427b74e34..4d6ced34d465 100644 --- a/drivers/gpu/drm/i915/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/intel_dp_mst.c @@ -484,6 +484,8 @@ static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topolo if (ret) goto err; + drm_dp_mst_get_port_malloc(port); + return connector; err: