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, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 C479BC433DB for ; Tue, 26 Jan 2021 19:53:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9907922A85 for ; Tue, 26 Jan 2021 19:53:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731784AbhAZFcV convert rfc822-to-8bit (ORCPT ); Tue, 26 Jan 2021 00:32:21 -0500 Received: from mga03.intel.com ([134.134.136.65]:50192 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727497AbhAYKWY (ORCPT ); Mon, 25 Jan 2021 05:22:24 -0500 IronPort-SDR: CVXrASrWj1vF9UWmss1ilPUasLSzuYGg9JiKqsGuYomDY5EyXnlnDGkyx86IhQteL7LASnl9+W bHZb/sXJ5RnQ== X-IronPort-AV: E=McAfee;i="6000,8403,9874"; a="179781960" X-IronPort-AV: E=Sophos;i="5.79,373,1602572400"; d="scan'208";a="179781960" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Jan 2021 02:20:50 -0800 IronPort-SDR: akytaJWiaBld45QFQLP5/MONALtuGt4SKABR6xA3o42a3g3MrkWEFLfrFSURJG6/jhy4+NcjaP UDMwn1QNu5vQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.79,373,1602572400"; d="scan'208";a="361422328" Received: from fmsmsx606.amr.corp.intel.com ([10.18.126.86]) by fmsmga008.fm.intel.com with ESMTP; 25 Jan 2021 02:20:50 -0800 Received: from bgsmsx605.gar.corp.intel.com (10.67.234.7) by fmsmsx606.amr.corp.intel.com (10.18.126.86) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Mon, 25 Jan 2021 02:20:49 -0800 Received: from bgsmsx604.gar.corp.intel.com (10.67.234.6) by BGSMSX605.gar.corp.intel.com (10.67.234.7) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Mon, 25 Jan 2021 15:50:47 +0530 Received: from bgsmsx604.gar.corp.intel.com ([10.67.234.6]) by BGSMSX604.gar.corp.intel.com ([10.67.234.6]) with mapi id 15.01.1713.004; Mon, 25 Jan 2021 15:50:47 +0530 From: "Gupta, Anshuman" To: Jani Nikula , Colin King , Joonas Lahtinen , "Vivi, Rodrigo" , David Airlie , Daniel Vetter , "C, Ramalingam" , "Shankar, Uma" , "intel-gfx@lists.freedesktop.org" , "dri-devel@lists.freedesktop.org" CC: "kernel-janitors@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: RE: [PATCH][next] drm/i915/hdcp: Fix return of value in uninitialized variable ret Thread-Topic: [PATCH][next] drm/i915/hdcp: Fix return of value in uninitialized variable ret Thread-Index: AQHW8NCsVaR1vL8Y9E2VXHHZueOJa6ozZo4AgAS/EtA= Date: Mon, 25 Jan 2021 10:20:47 +0000 Message-ID: <422669df7166485aa5d4acfa3d3bf58e@intel.com> References: <20210122150957.209779-1-colin.king@canonical.com> <87y2glj8v5.fsf@intel.com> In-Reply-To: <87y2glj8v5.fsf@intel.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: dlp-product: dlpe-windows dlp-version: 11.5.1.3 dlp-reaction: no-action x-originating-ip: [10.223.10.1] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org It is already merged to drm-intel-next https://cgit.freedesktop.org/drm/drm-intel/commit/?h=drm-intel-next&id=40a6cead28f841ac350bd38dd7260ecacd5eab03 > -----Original Message----- > From: Jani Nikula > Sent: Friday, January 22, 2021 8:51 PM > To: Colin King ; Joonas Lahtinen > ; Vivi, Rodrigo ; > David Airlie ; Daniel Vetter ; C, Ramalingam > ; Gupta, Anshuman ; > Shankar, Uma ; intel-gfx@lists.freedesktop.org; dri- > devel@lists.freedesktop.org > Cc: kernel-janitors@vger.kernel.org; linux-kernel@vger.kernel.org > Subject: Re: [PATCH][next] drm/i915/hdcp: Fix return of value in uninitialized > variable ret > > On Fri, 22 Jan 2021, Colin King wrote: > > From: Colin Ian King > > > > Currently when there are other connectors on the port using HDCP the > > function _intel_hdcp_disable returns a garbage uninitialized value in > > variable ret. I believe the intention is to return 0, so return this > > literal value instead of the value in ret. > > > > Addresses-Coverity: ("Uninitialized scalar return") > > Fixes: 899c8762f981 ("drm/i915/hdcp: Configure HDCP2.2 MST steram > > encryption status") > > Signed-off-by: Colin Ian King > > Thanks, but there's already a fix in progress: > > http://lore.kernel.org/r/20210119064655.1605-3-anshuman.gupta@intel.com > > BR, > Jani. > > > > --- > > drivers/gpu/drm/i915/display/intel_hdcp.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c > > b/drivers/gpu/drm/i915/display/intel_hdcp.c > > index db8dff2eeb0a..a0e7b0bf892b 100644 > > --- a/drivers/gpu/drm/i915/display/intel_hdcp.c > > +++ b/drivers/gpu/drm/i915/display/intel_hdcp.c > > @@ -883,7 +883,7 @@ static int _intel_hdcp_disable(struct intel_connector > *connector) > > * until it disabled HDCP encryption for all connectors in MST topology. > > */ > > if (dig_port->num_hdcp_streams > 0) > > - return ret; > > + return 0; > > > > hdcp->hdcp_encrypted = false; > > intel_de_write(dev_priv, HDCP_CONF(dev_priv, cpu_transcoder, port), > > 0); > > -- > Jani Nikula, Intel Open Source Graphics Center