From patchwork Thu Jan 14 16:36:02 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Amadeusz_S=C5=82awi=C5=84ski?= X-Patchwork-Id: 12019655 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=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 C8B01C433DB for ; Thu, 14 Jan 2021 14:23:21 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id EE9A323A69 for ; Thu, 14 Jan 2021 14:23:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EE9A323A69 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 878D216D7; Thu, 14 Jan 2021 15:22:29 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 878D216D7 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1610634199; bh=WYkDQFcOisI01Y2kvy0bGM+km/h9TQOjXmA1xDI99bc=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=c5cCZO/1f8can9OeKPhdaWDOqbvJY8L4Os79Pd2gUDM0bPrfz+ti6PXKeanx4k2Ur JkaLK8hRAMMegEeJwyP92mxPbxs/3RltNeYQ1etDz7e7TyeE8KGF1C1kJ2PK+CqRn1 wyGspswYH6Ukmswap2Zp3Za6JLsXeOLn3oVDeli4= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id CF196F804D2; Thu, 14 Jan 2021 15:21:32 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id E7AC3F804C2; Thu, 14 Jan 2021 15:21:29 +0100 (CET) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 8FC74F80249 for ; Thu, 14 Jan 2021 15:21:22 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 8FC74F80249 IronPort-SDR: c8b8GWjLk7hf9dHL76fcqjFEnmFSDIWuxFm3Y/DF3/l0JlD3BxCTaAVEiag2DtVDvRSglYXKkT ljHzRsB7Qaow== X-IronPort-AV: E=McAfee;i="6000,8403,9863"; a="175792529" X-IronPort-AV: E=Sophos;i="5.79,347,1602572400"; d="scan'208";a="175792529" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Jan 2021 06:21:21 -0800 IronPort-SDR: +cXAz4qe1OFDauS8UhH2wNX39r08PLUAbOrnmx2raamEVciBq78ANrgy0l43knT+vf+jdfVrg0 V/IbFshcVPjQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.79,347,1602572400"; d="scan'208";a="400912808" Received: from pi-desktop.igk.intel.com ([10.237.148.102]) by fmsmga002.fm.intel.com with ESMTP; 14 Jan 2021 06:21:18 -0800 From: =?utf-8?q?Amadeusz_S=C5=82awi=C5=84ski?= To: Liam Girdwood , Mark Brown , Takashi Iwai Subject: [PATCH 2/2] ASoC: topology: Check if ops is set before dereference Date: Thu, 14 Jan 2021 11:36:02 -0500 Message-Id: <20210114163602.911205-3-amadeuszx.slawinski@linux.intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210114163602.911205-1-amadeuszx.slawinski@linux.intel.com> References: <20210114163602.911205-1-amadeuszx.slawinski@linux.intel.com> MIME-Version: 1.0 Cc: Cezary Rojewski , =?utf-8?q?Amadeusz_S=C5=82a?= =?utf-8?q?wi=C5=84ski?= , Pierre-Louis Bossart , alsa-devel@alsa-project.org X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" Topology can be created without ops overrides, in that case trying to assign any value would lead to dereferencing NULL pointer. Other places in code have either checks for tplg->ops or loop using *_count variables, hence they can't dereference NULL pointer and there is no need to add more checks. Signed-off-by: Amadeusz Sławiński --- sound/soc/soc-topology.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c index 0d182a190c98..5476854c12b0 100644 --- a/sound/soc/soc-topology.c +++ b/sound/soc/soc-topology.c @@ -2674,11 +2674,13 @@ int snd_soc_tplg_component_load(struct snd_soc_component *comp, tplg.fw = fw; tplg.dev = comp->dev; tplg.comp = comp; - tplg.ops = ops; - tplg.io_ops = ops->io_ops; - tplg.io_ops_count = ops->io_ops_count; - tplg.bytes_ext_ops = ops->bytes_ext_ops; - tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count; + if (ops) { + tplg.ops = ops; + tplg.io_ops = ops->io_ops; + tplg.io_ops_count = ops->io_ops_count; + tplg.bytes_ext_ops = ops->bytes_ext_ops; + tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count; + } ret = soc_tplg_load(&tplg); /* free the created components if fail to load topology */