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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 AE3EBC433DB for ; Tue, 26 Jan 2021 01:55:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 65B1321D93 for ; Tue, 26 Jan 2021 01:55:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731302AbhAYT3x (ORCPT ); Mon, 25 Jan 2021 14:29:53 -0500 Received: from mail.kernel.org ([198.145.29.99]:41308 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731389AbhAYSzm (ORCPT ); Mon, 25 Jan 2021 13:55:42 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 685F722482; Mon, 25 Jan 2021 18:55:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1611600927; bh=KHg7s5SxfV4NaBS9V1rBKCd3P05h8M0LBryiyrJDq/g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ytTbDNp4VPP+cgrSpGuN/7mFtvrtABnTWHIj61GKKURoBqDXreHaoZb3PbaDJKN5g c4TEF8mM38mIiGPKS4aPV063A34ikFqHiqmDZml9bnH5ULxv3mo0fWAOMHPXWnAHu7 mIp7uX5baigIvkCjIQvmZOfK1kIWduv5sLLW2e3s= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Sean Paul , Ramalingam C , Uma Shankar , Karthik B S , Anshuman Gupta , Jani Nikula Subject: [PATCH 5.10 194/199] drm/i915/hdcp: Get conn while content_type changed Date: Mon, 25 Jan 2021 19:40:16 +0100 Message-Id: <20210125183224.358407923@linuxfoundation.org> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210125183216.245315437@linuxfoundation.org> References: <20210125183216.245315437@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Anshuman Gupta commit 8662e1119a7d1baa1b2001689b2923e9050754bd upstream. Get DRM connector reference count while scheduling a prop work to avoid any possible destroy of DRM connector when it is in DRM_CONNECTOR_REGISTERED state. Fixes: a6597faa2d59 ("drm/i915: Protect workers against disappearing connectors") Cc: Sean Paul Cc: Ramalingam C Reviewed-by: Uma Shankar Reviewed-by: Ramalingam C Tested-by: Karthik B S Signed-off-by: Anshuman Gupta Link: https://patchwork.freedesktop.org/patch/msgid/20210111081120.28417-3-anshuman.gupta@intel.com (cherry picked from commit b3c6661aad979ec3d4f5675cf3e6a35828607d6a) Signed-off-by: Jani Nikula Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/i915/display/intel_hdcp.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/gpu/drm/i915/display/intel_hdcp.c +++ b/drivers/gpu/drm/i915/display/intel_hdcp.c @@ -2187,6 +2187,7 @@ void intel_hdcp_update_pipe(struct intel if (content_protection_type_changed) { mutex_lock(&hdcp->mutex); hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED; + drm_connector_get(&connector->base); schedule_work(&hdcp->prop_work); mutex_unlock(&hdcp->mutex); }