From patchwork Mon Nov 23 08:53:15 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Takashi Iwai X-Patchwork-Id: 11924593 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=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 196EFC56202 for ; Mon, 23 Nov 2020 08:58:15 +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 48BCB20732 for ; Mon, 23 Nov 2020 08:58:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="UY3uI+2B" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 48BCB20732 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de 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 A65A01684; Mon, 23 Nov 2020 09:57:22 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz A65A01684 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1606121892; bh=uvYTtIT6vScUbITlnpwUkyTU/FGHxgp2uU0cbuJfcUU=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=UY3uI+2BhKqXe3lclLqz8GxN45LTvY/QRGndZHkeG6IwdoE2n8JRYHDqcJiLiRqVR Z7N44RuzYU6BZmgcuoPAACSbdkkDykKJsi2RQtbKypLJIo3n6NfD8MbWInszH/l4L+ MKwWIsNZalCK1e6t8K0YJHUfNu5h+g+k1JrQA+N4= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 8ADD4F80525; Mon, 23 Nov 2020 09:54:20 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 89E09F80517; Mon, 23 Nov 2020 09:54:12 +0100 (CET) Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 08098F80273 for ; Mon, 23 Nov 2020 09:53:59 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 08098F80273 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 5D15EAF98; Mon, 23 Nov 2020 08:53:57 +0000 (UTC) From: Takashi Iwai To: alsa-devel@alsa-project.org Subject: [PATCH 09/41] ALSA: usb-audio: Move snd_usb_autoresume() call out of setup_hw_info() Date: Mon, 23 Nov 2020 09:53:15 +0100 Message-Id: <20201123085347.19667-10-tiwai@suse.de> X-Mailer: git-send-email 2.16.4 In-Reply-To: <20201123085347.19667-1-tiwai@suse.de> References: <20201123085347.19667-1-tiwai@suse.de> Cc: Matwey Kornilov , Dylan Robinson , Keith Milner 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" This is a preliminary work for the upcoming hw-constraint change for the implicit feedback mode. Currently snd_usb_autoresume() is called at the end of setup_hwinfo(). It's a bit confusing; because of this implicit refcount usage, the caller side needs to call snd_usb_autosuspend() later in the error path although it's not seen inside the function. Instead, it's clearer to call both snd_usb_autoresume() and suspend() in the very same function. It's only refactoring and no functional changes. Tested-by: Keith Milner Tested-by: Dylan Robinson Signed-off-by: Takashi Iwai --- sound/usb/pcm.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index fea2764163b4..78933b6571d0 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -1378,7 +1378,7 @@ static int setup_hw_info(struct snd_pcm_runtime *runtime, struct snd_usb_substre return err; } - return snd_usb_autoresume(subs->stream->chip); + return 0; } static int snd_usb_pcm_open(struct snd_pcm_substream *substream) @@ -1402,11 +1402,14 @@ static int snd_usb_pcm_open(struct snd_pcm_substream *substream) subs->dsd_dop.marker = 1; ret = setup_hw_info(runtime, subs); - if (ret == 0) { - ret = snd_media_stream_init(subs, as->pcm, direction); - if (ret) - snd_usb_autosuspend(subs->stream->chip); - } + if (ret < 0) + return ret; + ret = snd_usb_autoresume(subs->stream->chip); + if (ret < 0) + return ret; + ret = snd_media_stream_init(subs, as->pcm, direction); + if (ret < 0) + snd_usb_autosuspend(subs->stream->chip); return ret; }