From patchwork Mon Jan 12 09:17:34 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Jie, Yang" X-Patchwork-Id: 5609001 Return-Path: X-Original-To: patchwork-alsa-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 898CBC058D for ; Mon, 12 Jan 2015 09:16:24 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id BF0D420647 for ; Mon, 12 Jan 2015 09:16:23 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) by mail.kernel.org (Postfix) with ESMTP id 7B0222061F for ; Mon, 12 Jan 2015 09:16:21 +0000 (UTC) Received: by alsa0.perex.cz (Postfix, from userid 1000) id C5E1E26067C; Mon, 12 Jan 2015 10:16:19 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,NO_DNS_FOR_FROM, UNPARSEABLE_RELAY autolearn=no version=3.3.1 Received: from alsa0.perex.cz (localhost [IPv6:::1]) by alsa0.perex.cz (Postfix) with ESMTP id B28D7260651; Mon, 12 Jan 2015 10:16:12 +0100 (CET) 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 DE351260654; Mon, 12 Jan 2015 10:16:10 +0100 (CET) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by alsa0.perex.cz (Postfix) with ESMTP id B693C26064A for ; Mon, 12 Jan 2015 10:16:03 +0100 (CET) Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga102.fm.intel.com with ESMTP; 12 Jan 2015 01:16:02 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.04,691,1406617200"; d="scan'208";a="510863950" Received: from keyon-u1310.sh.intel.com ([10.239.13.15]) by orsmga003.jf.intel.com with ESMTP; 12 Jan 2015 01:09:58 -0800 From: Jie Yang To: broonie@kernel.org Date: Mon, 12 Jan 2015 17:17:34 +0800 Message-Id: <1421054254-25716-1-git-send-email-yang.jie@intel.com> X-Mailer: git-send-email 1.9.1 Cc: alsa-devel@alsa-project.org, liam.r.girdwood@intel.com Subject: [alsa-devel] [PATCH] ASoC: Intel: initial stream_hw_id to invalid value 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 The stream_hw_id for System stream is 0x0, if we use initial stream_hw_id value 0, it may return wrong(not committed) stream when calling function get_stream_by_id() with stream_id=0. Here initial stream_hw_id to invalid value to fix this issue. Signed-off-by: Jie Yang --- sound/soc/intel/sst-haswell-ipc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sound/soc/intel/sst-haswell-ipc.c b/sound/soc/intel/sst-haswell-ipc.c index 5bf1404..eeef9a5 100644 --- a/sound/soc/intel/sst-haswell-ipc.c +++ b/sound/soc/intel/sst-haswell-ipc.c @@ -94,6 +94,8 @@ /* Mailbox */ #define IPC_MAX_MAILBOX_BYTES 256 +#define INVALID_STREAM_HW_ID 0xffffffff + /* Global Message - Types and Replies */ enum ipc_glb_type { IPC_GLB_GET_FW_VERSION = 0, /* Retrieves firmware version */ @@ -1208,6 +1210,7 @@ struct sst_hsw_stream *sst_hsw_stream_new(struct sst_hsw *hsw, int id, return NULL; spin_lock_irqsave(&sst->spinlock, flags); + stream->reply.stream_hw_id = INVALID_STREAM_HW_ID; list_add(&stream->node, &hsw->stream_list); stream->notify_position = notify_position; stream->pdata = data;