From mboxrd@z Thu Jan 1 00:00:00 1970 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=-6.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 4CC86C169C4 for ; Mon, 11 Feb 2019 15:52:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1E30921855 for ; Mon, 11 Feb 2019 15:52:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1549900332; bh=8A0FbHpI+TDSojz4X0gu1Ct4UQRN+rx4PpUcUIfXsHk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=lQaeg26+IzTthLhcJqIBDZ9E25B9zzg24S66w2WhmXWMgLAztqWdKJBgmZB31GFCx mGKWamMT9XnOpcT3jIjDmRV44JJRVXRgZy3MPeZjI9Pw0K0Zhl7BXAgWBvrv2zMGEH L6q7qsyaacQ0nlJOKfT2x87isBh8vsEgmJj4Rtus= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732249AbfBKPwL (ORCPT ); Mon, 11 Feb 2019 10:52:11 -0500 Received: from mail.kernel.org ([198.145.29.99]:47006 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731445AbfBKOhf (ORCPT ); Mon, 11 Feb 2019 09:37:35 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 87A612081B; Mon, 11 Feb 2019 14:37:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1549895855; bh=8A0FbHpI+TDSojz4X0gu1Ct4UQRN+rx4PpUcUIfXsHk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TgxE/Mln+Qt6oA+aBHpSNvijUk14yh0IoEhfvwgGzM5UyaKDpfFzW+CSObWLHlppF 32v4WmPcTUY0eW4eUUuhgrpReCIB0s26hM/HNfz0LxWP+xwDzBPl/BTCdO9kMTUL6w YMWDqnnIzHf6sjNj1tPKPGrZWGFhM6KLRGymQVPk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Charles Keepax , Takashi Iwai Subject: [PATCH 4.20 314/352] ALSA: compress: Fix stop handling on compressed capture streams Date: Mon, 11 Feb 2019 15:19:01 +0100 Message-Id: <20190211141906.799446361@linuxfoundation.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190211141846.543045703@linuxfoundation.org> References: <20190211141846.543045703@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.20-stable review patch. If anyone has any objections, please let me know. ------------------ From: Charles Keepax commit 4f2ab5e1d13d6aa77c55f4914659784efd776eb4 upstream. It is normal user behaviour to start, stop, then start a stream again without closing it. Currently this works for compressed playback streams but not capture ones. The states on a compressed capture stream go directly from OPEN to PREPARED, unlike a playback stream which moves to SETUP and waits for a write of data before moving to PREPARED. Currently however, when a stop is sent the state is set to SETUP for both types of streams. This leaves a capture stream in the situation where a new start can't be sent as that requires the state to be PREPARED and a new set_params can't be sent as that requires the state to be OPEN. The only option being to close the stream, and then reopen. Correct this issues by allowing snd_compr_drain_notify to set the state depending on the stream direction, as we already do in set_params. Fixes: 49bb6402f1aa ("ALSA: compress_core: Add support for capture streams") Signed-off-by: Charles Keepax Cc: Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- include/sound/compress_driver.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) --- a/include/sound/compress_driver.h +++ b/include/sound/compress_driver.h @@ -171,7 +171,11 @@ static inline void snd_compr_drain_notif if (snd_BUG_ON(!stream)) return; - stream->runtime->state = SNDRV_PCM_STATE_SETUP; + if (stream->direction == SND_COMPRESS_PLAYBACK) + stream->runtime->state = SNDRV_PCM_STATE_SETUP; + else + stream->runtime->state = SNDRV_PCM_STATE_PREPARED; + wake_up(&stream->runtime->sleep); }