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Mon, 16 Mar 2015 13:46:12 +0900 X-IronPort-AV: E=Sophos;i="5.11,407,1422889200"; d="scan'208";a="181988396" Received: from mail-sg1lp0089.outbound.protection.outlook.com (HELO APAC01-SG1-obe.outbound.protection.outlook.com) ([207.46.51.89]) by relmlii1.idc.renesas.com with ESMTP/TLS/AES256-SHA; 16 Mar 2015 13:46:12 +0900 Received: from morimoto-PC.renesas.com (211.11.155.132) by HKNPR06MB308.apcprd06.prod.outlook.com (10.141.37.28) with Microsoft SMTP Server (TLS) id 15.1.112.19; Mon, 16 Mar 2015 04:46:10 +0000 Message-ID: <8761a1k0sk.wl%kuninori.morimoto.gx@renesas.com> From: Kuninori Morimoto User-Agent: Wanderlust/2.15.9 Emacs/24.3 Mule/6.0 To: Mark Brown In-Reply-To: <87egopk13d.wl%kuninori.morimoto.gx@renesas.com> References: <87egopk13d.wl%kuninori.morimoto.gx@renesas.com> MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Date: Mon, 16 Mar 2015 04:46:10 +0000 X-Originating-IP: [211.11.155.132] X-ClientProxiedBy: TY1PR01CA0013.jpnprd01.prod.outlook.com (25.161.131.151) To HKNPR06MB308.apcprd06.prod.outlook.com (10.141.37.28) Authentication-Results: kernel.org; dkim=none (message not signed) header.d=none; X-Microsoft-Antispam: UriScan:;BCL:0;PCL:0;RULEID:;SRVR:HKNPR06MB308; X-Forefront-Antispam-Report: BMV:1; SFV:NSPM; SFS:(10019020)(6009001)(50466002)(66066001)(46406003)(36756003)(33646002)(46102003)(87976001)(42186005)(53416004)(77156002)(86362001)(19580405001)(19580395003)(83506001)(77096005)(62966003)(54356999)(76176999)(92566002)(229853001)(40100003)(2950100001)(50986999)(110136001)(122386002)(29513003); DIR:OUT; SFP:1102; SCL:1; SRVR:HKNPR06MB308; H:morimoto-PC.renesas.com; FPR:; SPF:None; MLV:sfv; LANG:en; X-Microsoft-Antispam-PRVS: X-Exchange-Antispam-Report-Test: UriScan:; X-Exchange-Antispam-Report-CFA-Test: BCL:0; PCL:0; RULEID:(601004)(5002010)(5005006); SRVR:HKNPR06MB308; BCL:0; PCL:0; RULEID:; SRVR:HKNPR06MB308; X-Forefront-PRVS: 05177D47DC X-OriginatorOrg: renesas.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Mar 2015 04:46:10.7468 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-Transport-CrossTenantHeadersStamped: HKNPR06MB308 Cc: Linux-ALSA , Simon , shiiba , Liam Girdwood , Das Biju Subject: [alsa-devel] [PATCH 06/12 v2] ASoC: rsnd: no more SSI restart when unusual situation 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: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org X-Virus-Scanned: ClamAV using ClamSMTP From: Kuninori Morimoto It will be SSI interrupt endless loop f unusual situation happen. This patch adds restart limit for it. Signed-off-by: Kuninori Morimoto --- v1 -> v2 - no change sound/soc/sh/rcar/ssi.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c index fea4aa5..060d3d2 100644 --- a/sound/soc/sh/rcar/ssi.c +++ b/sound/soc/sh/rcar/ssi.c @@ -416,11 +416,14 @@ static irqreturn_t rsnd_ssi_interrupt(int irq, void *data) /* * restart SSI */ - rsnd_ssi_stop(mod, priv); - rsnd_ssi_start(mod, priv); - dev_dbg(dev, "%s[%d] restart\n", rsnd_mod_name(mod), rsnd_mod_id(mod)); + + rsnd_ssi_stop(mod, priv); + if (ssi->err < 1024) + rsnd_ssi_start(mod, priv); + else + dev_warn(dev, "no more SSI restart\n"); } rsnd_ssi_record_error(ssi, status);