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=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 DF6A1C43603 for ; Wed, 18 Dec 2019 14:19:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B317E2176D for ; Wed, 18 Dec 2019 14:19:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=st.com header.i=@st.com header.b="kNlkEtLS" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727108AbfLROTI (ORCPT ); Wed, 18 Dec 2019 09:19:08 -0500 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:17550 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726856AbfLROTI (ORCPT ); Wed, 18 Dec 2019 09:19:08 -0500 Received: from pps.filterd (m0046668.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id xBIEIF4E006567; Wed, 18 Dec 2019 15:18:16 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=st.com; h=from : to : cc : subject : date : message-id : mime-version : content-type; s=STMicroelectronics; bh=VkB1F9j4Bc2882ixkvjF3/YhIbvozsdCU4TfcGwrFI4=; b=kNlkEtLSNW+jito3GFcNjm/sDFWH6hj6tulB7EUTOT7R8nKigUr9I+aNUmO/JTcM2m61 SXbi0X1pLqkdcpeasKFt2DgBAZhbLMgk/NDtyV+Y1ryqgiKamQ2MxAHceYSUNeQ8URRU 7UX2HX914cxki2JimUHPgSMZOcy3ajS+CIk6IT0t7rjvGQ3q1kIZJXrPqiXaV3hNpSJb h2Kiwt1GrxydNRuU2WAzOd4aR6dFoGmyWqW+MBg22xzZZSjyT0OaJzrrPSa4uNeavmUG vXboDxvkn9yM2Hh1QCr2DzIWXdI8r3NSxX6+QC1SNLm6H2uVr0KWpD4MLVxDpfiXcuLy qw== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 2wvp374uak-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 18 Dec 2019 15:18:16 +0100 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 7F88D10003A; Wed, 18 Dec 2019 15:18:10 +0100 (CET) Received: from Webmail-eu.st.com (sfhdag3node1.st.com [10.75.127.7]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 508D72BEAD4; Wed, 18 Dec 2019 15:18:10 +0100 (CET) Received: from localhost (10.75.127.44) by SFHDAG3NODE1.st.com (10.75.127.7) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Wed, 18 Dec 2019 15:18:09 +0100 From: Arnaud Pouliquen To: , Mark Brown , Liam Girdwood , Jaroslav Kysela , Takashi Iwai , Jia-Ju Bai CC: , , , Olivier Moysan , Subject: [INTERNAL REVIEW] asoc: sti: fix possible sleep-in-atomic Date: Wed, 18 Dec 2019 15:16:46 +0100 Message-ID: <20191218141646.23256-1-arnaud.pouliquen@st.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.75.127.44] X-ClientProxiedBy: SFHDAG7NODE1.st.com (10.75.127.19) To SFHDAG3NODE1.st.com (10.75.127.7) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.95,18.0.572 definitions=2019-12-18_04:2019-12-17,2019-12-18 signatures=0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Change mutex and spinlock management to avoid sleep in atomic issue. Signed-off-by: Arnaud Pouliquen --- sound/soc/sti/uniperif_player.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/sound/soc/sti/uniperif_player.c b/sound/soc/sti/uniperif_player.c index 48ea915b24ba..2ed92c990b97 100644 --- a/sound/soc/sti/uniperif_player.c +++ b/sound/soc/sti/uniperif_player.c @@ -226,7 +226,6 @@ static void uni_player_set_channel_status(struct uniperif *player, * sampling frequency. If no sample rate is already specified, then * set one. */ - mutex_lock(&player->ctrl_lock); if (runtime) { switch (runtime->rate) { case 22050: @@ -303,7 +302,6 @@ static void uni_player_set_channel_status(struct uniperif *player, player->stream_settings.iec958.status[3 + (n * 4)] << 24; SET_UNIPERIF_CHANNEL_STA_REGN(player, n, status); } - mutex_unlock(&player->ctrl_lock); /* Update the channel status */ if (player->ver < SND_ST_UNIPERIF_VERSION_UNI_PLR_TOP_1_0) @@ -365,8 +363,10 @@ static int uni_player_prepare_iec958(struct uniperif *player, SET_UNIPERIF_CTRL_ZERO_STUFF_HW(player); + mutex_lock(&player->ctrl_lock); /* Update the channel status */ uni_player_set_channel_status(player, runtime); + mutex_unlock(&player->ctrl_lock); /* Clear the user validity user bits */ SET_UNIPERIF_USER_VALIDITY_VALIDITY_LR(player, 0); @@ -598,7 +598,6 @@ static int uni_player_ctl_iec958_put(struct snd_kcontrol *kcontrol, iec958->status[1] = ucontrol->value.iec958.status[1]; iec958->status[2] = ucontrol->value.iec958.status[2]; iec958->status[3] = ucontrol->value.iec958.status[3]; - mutex_unlock(&player->ctrl_lock); spin_lock_irqsave(&player->irq_lock, flags); if (player->substream && player->substream->runtime) @@ -608,6 +607,8 @@ static int uni_player_ctl_iec958_put(struct snd_kcontrol *kcontrol, uni_player_set_channel_status(player, NULL); spin_unlock_irqrestore(&player->irq_lock, flags); + mutex_unlock(&player->ctrl_lock); + return 0; } -- 2.17.1