From patchwork Tue Jul 26 12:36:39 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vinod Koul X-Patchwork-Id: 9248513 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 8AE9F607F2 for ; Tue, 26 Jul 2016 17:35:30 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7EB09212D9 for ; Tue, 26 Jul 2016 17:35:30 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7379824B48; Tue, 26 Jul 2016 17:35:30 +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=-1.9 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DD1C126B41 for ; Tue, 26 Jul 2016 17:35:29 +0000 (UTC) Received: by alsa0.perex.cz (Postfix, from userid 1000) id DD0552666F5; Tue, 26 Jul 2016 19:35:27 +0200 (CEST) Received: from alsa0.perex.cz (localhost [127.0.0.1]) by alsa0.perex.cz (Postfix) with ESMTP id A8AC92682B6; Tue, 26 Jul 2016 15:48:04 +0200 (CEST) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa0.perex.cz (Postfix, from userid 1000) id D767F266991; Tue, 26 Jul 2016 15:48:02 +0200 (CEST) Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by alsa0.perex.cz (Postfix) with ESMTP id A9654266991 for ; Tue, 26 Jul 2016 14:29:44 +0200 (CEST) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga101.jf.intel.com with ESMTP; 26 Jul 2016 05:29:31 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos; i="5.28,424,1464678000"; d="scan'208"; a="1024132559" Received: from vkoul-udesk7.iind.intel.com ([10.223.84.143]) by orsmga002.jf.intel.com with ESMTP; 26 Jul 2016 05:29:29 -0700 From: Vinod Koul To: alsa-devel@alsa-project.org Date: Tue, 26 Jul 2016 18:06:39 +0530 Message-Id: <1469536610-27606-2-git-send-email-vinod.koul@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1469536610-27606-1-git-send-email-vinod.koul@intel.com> References: <1469536610-27606-1-git-send-email-vinod.koul@intel.com> Cc: liam.r.girdwood@linux.intel.com, patches.audio@intel.com, broonie@kernel.org, Vinod Koul , Senthilnathan Veppur Subject: [alsa-devel] [PATCH 01/12] ASoC: Intel: Skylake: Check list empty while getting module info X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.14 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: , MIME-Version: 1.0 Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org X-Virus-Scanned: ClamAV using ClamSMTP Module list can be NULL so check if the list is empty before accessing the list. Signed-off-by: Senthilnathan Veppur Signed-off-by: Vinod Koul --- sound/soc/intel/skylake/skl-sst-utils.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/sound/soc/intel/skylake/skl-sst-utils.c b/sound/soc/intel/skylake/skl-sst-utils.c index 25fcb796bd86..ddcb52a51854 100644 --- a/sound/soc/intel/skylake/skl-sst-utils.c +++ b/sound/soc/intel/skylake/skl-sst-utils.c @@ -123,6 +123,11 @@ int snd_skl_get_module_info(struct skl_sst *ctx, u8 *uuid, uuid_mod = (uuid_le *)uuid; + if (list_empty(&ctx->uuid_list)) { + dev_err(ctx->dev, "Module list is empty\n"); + return -EINVAL; + } + list_for_each_entry(module, &ctx->uuid_list, list) { if (uuid_le_cmp(*uuid_mod, module->uuid) == 0) { dfw_config->module_id = module->id;