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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A8D4CC3DA7D for ; Wed, 28 Dec 2022 15:42:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233571AbiL1Pm2 (ORCPT ); Wed, 28 Dec 2022 10:42:28 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58002 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233965AbiL1PmE (ORCPT ); Wed, 28 Dec 2022 10:42:04 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 07ABC1705B for ; Wed, 28 Dec 2022 07:41:55 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 97C116155E for ; Wed, 28 Dec 2022 15:41:54 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id AF7DDC433D2; Wed, 28 Dec 2022 15:41:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1672242114; bh=q4sc++3K2GfvUAKwubTjvcqFLgZ2ewrtLeGPqSmaAzM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Yvjnua6MfBaRLzXsDUO1XJuT9E/qQ2NFZ+B5Hx829S8xT4jBfu2a94n9nuZoqob2B 4ywjksizxZtrNmRPU5+Y/uAPYhIYkAY8x6CaUuvIzp8tlWlagefXghQ6vfZ47wbcd3 NIv4RrDBK2Ty4zekav/AwVkJf3bMrhV4wMF/9zMk= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Cezary Rojewski , Mark Brown , Sasha Levin Subject: [PATCH 6.0 0362/1073] ASoC: Intel: avs: Lock substream before snd_pcm_stop() Date: Wed, 28 Dec 2022 15:32:30 +0100 Message-Id: <20221228144337.834349728@linuxfoundation.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20221228144328.162723588@linuxfoundation.org> References: <20221228144328.162723588@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Cezary Rojewski [ Upstream commit c30c8f9d51ec24b36e2c65a6307a5c8cbc5a0ebc ] snd_pcm_stop() shall be called with stream lock held to prevent any races between nonatomic streaming operations. Fixes: 2f1f570cd730 ("ASoC: Intel: avs: Coredump and recovery flow") Signed-off-by: Cezary Rojewski Link: https://lore.kernel.org/r/20221116115550.1100398-2-cezary.rojewski@intel.com Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- sound/soc/intel/avs/ipc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sound/soc/intel/avs/ipc.c b/sound/soc/intel/avs/ipc.c index 77da206f7dbb..306f0dc4eaf5 100644 --- a/sound/soc/intel/avs/ipc.c +++ b/sound/soc/intel/avs/ipc.c @@ -123,7 +123,10 @@ static void avs_dsp_recovery(struct avs_dev *adev) if (!substream || !substream->runtime) continue; + /* No need for _irq() as we are in nonatomic context. */ + snd_pcm_stream_lock(substream); snd_pcm_stop(substream, SNDRV_PCM_STATE_DISCONNECTED); + snd_pcm_stream_unlock(substream); } } } -- 2.35.1