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Fri, 13 Mar 2015 10:24:36 +0900 X-IronPort-AV: E=Sophos;i="5.11,391,1422889200"; d="scan'208";a="182974878" Received: from mail-sg1lp0091.outbound.protection.outlook.com (HELO APAC01-SG1-obe.outbound.protection.outlook.com) ([207.46.51.91]) by relmlii2.idc.renesas.com with ESMTP/TLS/AES256-SHA; 13 Mar 2015 10:24:35 +0900 Received: from morimoto-PC.renesas.com (211.11.155.132) by SINPR06MB313.apcprd06.prod.outlook.com (10.141.115.144) with Microsoft SMTP Server (TLS) id 15.1.112.16; Fri, 13 Mar 2015 01:24:33 +0000 Message-ID: <87sid9r8oz.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: <874mppsngc.wl%kuninori.morimoto.gx@renesas.com> References: <874mppsngc.wl%kuninori.morimoto.gx@renesas.com> MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Date: Fri, 13 Mar 2015 01:24:33 +0000 X-Originating-IP: [211.11.155.132] X-ClientProxiedBy: OS2PR01CA0015.jpnprd01.prod.outlook.com (25.161.74.153) To SINPR06MB313.apcprd06.prod.outlook.com (10.141.115.144) Authentication-Results: kernel.org; dkim=none (message not signed) header.d=none; X-Microsoft-Antispam: UriScan:;BCL:0;PCL:0;RULEID:;SRVR:SINPR06MB313; X-Forefront-Antispam-Report: BMV:1; SFV:NSPM; SFS:(10019020)(6009001)(2950100001)(92566002)(36756003)(19580395003)(50986999)(19580405001)(76176999)(54356999)(83506001)(62966003)(87976001)(229853001)(77156002)(47776003)(42186005)(66066001)(46406003)(53416004)(33646002)(77096005)(50466002)(110136001)(86362001)(40100003)(46102003)(23726002)(122386002)(29513003); DIR:OUT; SFP:1102; SCL:1; SRVR:SINPR06MB313; 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)(5002009)(5005006); SRVR:SINPR06MB313; BCL:0; PCL:0; RULEID:; SRVR:SINPR06MB313; X-Forefront-PRVS: 05143A8241 X-OriginatorOrg: renesas.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Mar 2015 01:24:33.1565 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-Transport-CrossTenantHeadersStamped: SINPR06MB313 Cc: Linux-ALSA , Simon , shiiba , Liam Girdwood , Das Biju Subject: [alsa-devel] [PATCH 07/13] 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 --- 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);