From patchwork Mon Jul 22 04:06:20 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Kandpal, Suraj" X-Patchwork-Id: 13738258 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3A785C3DA70 for ; Mon, 22 Jul 2024 04:08:49 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 93F7710E23B; Mon, 22 Jul 2024 04:08:48 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="MFG5ZzKN"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.15]) by gabe.freedesktop.org (Postfix) with ESMTPS id F1FC410E188; Mon, 22 Jul 2024 04:08:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1721621327; x=1753157327; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=pwr2CvIbH3d4gdoVL52Mki8m0rGEKzr2+/DcgfmO6xU=; b=MFG5ZzKNSN4t2uMVpHkuSt8PtzAxo3gyoOsLr/x33T77g2hOabNvvXMV DirqZQ1ClGjfsV8z1bG1iWPAvaK5IC2tRdDh0xRTeOgvBeRhkY7FuVbnZ Rxh0ekuAA3QQaV6DlKqmUJzUqKJnaoWjAETYiozWYh94u+YKrmI+ztasB ijIhhu92MZvIL0CLXmXhTCct9sIgFj2p9Bzuo/5svj5vcZHMQnrsxwjjp t5rA/8Jd1WyrZ3LYX7c02hq+R8hgup92FM6/OfriWE53ZpPhQPcRsmvs+ bHwH1MFUzaXhAVzhr0ASRZlUby9EaiXJVT21eG33RyqGprww005MJtsOH Q==; X-CSE-ConnectionGUID: M0YAs7kPQgqfiq9yHvAAjQ== X-CSE-MsgGUID: Adc/OA9VR1KwdvbTqZLQ6Q== X-IronPort-AV: E=McAfee;i="6700,10204,11140"; a="22931933" X-IronPort-AV: E=Sophos;i="6.09,227,1716274800"; d="scan'208";a="22931933" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Jul 2024 21:08:46 -0700 X-CSE-ConnectionGUID: jea2dfB7S4asHkXXBTLGQw== X-CSE-MsgGUID: LaUkZM8ZQ8SZ+h37JQNPOg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.09,227,1716274800"; d="scan'208";a="56296268" Received: from kandpal-x299-ud4-pro.iind.intel.com ([10.190.239.32]) by fmviesa004.fm.intel.com with ESMTP; 21 Jul 2024 21:08:45 -0700 From: Suraj Kandpal To: intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org Cc: ankit.k.nautiyal@intel.com, Suraj Kandpal Subject: [PATCH 0/2] Fix null pointer error in HDCP capability check Date: Mon, 22 Jul 2024 09:36:20 +0530 Message-ID: <20240722040622.3605835-1-suraj.kandpal@intel.com> X-Mailer: git-send-email 2.43.2 MIME-Version: 1.0 X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" During suspend/resume or plug/unplug scenarios encoder and gsc are not initialized. This patch series adds checks to make sure we don't run into a null pointer error. Signed-off-by: Suraj Kandpal Suraj Kandpal (2): drm/i915/hdcp: Check encoder availibility before using it drm/xe/hdcp: Check GSC structure validity drivers/gpu/drm/i915/display/intel_hdcp.c | 7 ++++++- drivers/gpu/drm/xe/display/xe_hdcp_gsc.c | 8 ++++++-- 2 files changed, 12 insertions(+), 3 deletions(-)