From patchwork Thu Feb 13 04:26:42 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kuninori Morimoto X-Patchwork-Id: 193610 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=-6.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED 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 2A32CC352A3 for ; Thu, 13 Feb 2020 04:30:51 +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 A9F58206ED for ; Thu, 13 Feb 2020 04:30:49 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="g12raERH" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A9F58206ED Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=renesas.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 217FE1684; Thu, 13 Feb 2020 05:29:58 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 217FE1684 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1581568248; bh=oOHYw27vy9iiEGAv56dCuzpUZpD0Th8uxrfvvB2FXg8=; h=Date:From:To:In-Reply-To:References:Cc:Subject:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=g12raERHgKFggG1Fu7fBYzium8v/XFvlMXibhVhqOXquzLTeJyDPok/yNWEbJrXk3 Vfmtq81ufmnRfRa2g4STuKrYf9MYgWG73TQw6u1qER9twd4dERHtwvQWrzT5B1WE/B LuBG9PIE+HUo3alwYRmZ/sehrlyihdBNtff/TcG4= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 4D44DF802A8; Thu, 13 Feb 2020 05:26:49 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 26907F802A1; Thu, 13 Feb 2020 05:26:46 +0100 (CET) Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by alsa1.perex.cz (Postfix) with ESMTP id B33FFF80299 for ; Thu, 13 Feb 2020 05:26:42 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz B33FFF80299 Date: 13 Feb 2020 13:26:42 +0900 X-IronPort-AV: E=Sophos;i="5.70,434,1574089200"; d="scan'208";a="39148069" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 13 Feb 2020 13:26:42 +0900 Received: from mercury.renesas.com (unknown [10.166.252.133]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 4FA10418DEC6; Thu, 13 Feb 2020 13:26:42 +0900 (JST) Message-ID: <87zhdnqfie.wl-kuninori.morimoto.gx@renesas.com> From: Kuninori Morimoto User-Agent: Wanderlust/2.15.9 Emacs/25.2 Mule/6.0 To: Mark Brown In-Reply-To: <87blq3ru4w.wl-kuninori.morimoto.gx@renesas.com> References: <87blq3ru4w.wl-kuninori.morimoto.gx@renesas.com> MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Cc: Linux-ALSA Subject: [alsa-devel] [PATCH 08/10] ASoC: soc-pcm: use goto and remove multi return 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" From: Kuninori Morimoto When we use some kind of lock, we need to do unlock. In that time, multi unlock/return is not good implementation. This patch add label and use goto at dpcm_fe_dai_open() to reduce such code. Signed-off-by: Kuninori Morimoto --- sound/soc/soc-pcm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 140f07b91d6a..95fe915f26b0 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -2733,8 +2733,7 @@ static int dpcm_fe_dai_open(struct snd_pcm_substream *fe_substream) ret = dpcm_path_get(fe, stream, &list); if (ret < 0) { - mutex_unlock(&fe->card->mutex); - return ret; + goto open_end; } else if (ret == 0) { dev_dbg(fe->dev, "ASoC: %s no valid %s route\n", fe->dai_link->name, stream ? "capture" : "playback"); @@ -2755,6 +2754,7 @@ static int dpcm_fe_dai_open(struct snd_pcm_substream *fe_substream) dpcm_clear_pending_state(fe, stream); dpcm_path_put(&list); +open_end: mutex_unlock(&fe->card->mutex); return ret; }