From patchwork Wed Nov 9 17:08:49 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Olivier Moysan X-Patchwork-Id: 13037803 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 0D883C4332F for ; Wed, 9 Nov 2022 17:11:01 +0000 (UTC) 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 95C46163A; Wed, 9 Nov 2022 18:10:09 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 95C46163A DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1668013859; bh=crq+9NOYjLfnSNgsjEMC7W+s91zhZOUk4OLF9bP//lA=; h=From:To:Subject:Date:Cc:List-Id:List-Unsubscribe:List-Archive: List-Post:List-Help:List-Subscribe:From; b=TNDEcZwRkp/lY9hICLAPTBi8j68T94ap7MGVmxgUSMm1CQ9SesRGpZ+Lm1QWnpT40 nf7b88ueE6H3pH/vBQGUsFavSbd4J8FT4DU6MeQScLetTnF+2FA5Ew4/x1JJP2JrlG O5LEOvtRiS8vDD1CWSyLe9AiakCUfnQ/bgQ8SHos= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 463C4F80166; Wed, 9 Nov 2022 18:10:09 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 2A30DF80217; Wed, 9 Nov 2022 18:10:08 +0100 (CET) Received: from mx07-00178001.pphosted.com (mx08-00178001.pphosted.com [91.207.212.93]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id C3A03F800EC for ; Wed, 9 Nov 2022 18:10:01 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz C3A03F800EC Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key) header.d=foss.st.com header.i=@foss.st.com header.b="WxJDI78Q" Received: from pps.filterd (m0046661.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 2A9GmoS9025098; Wed, 9 Nov 2022 18:10:00 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding : content-type; s=selector1; bh=TylSzxW41j5uV+QK5Kbt4olHN8IHl8axagRqf9wIm/A=; b=WxJDI78QH4j2s/IJRetCyvfrd4cC2obfF27F6n6nbiVU2s6Jni6ZMU9DRLq1eMPVvMw2 qM7MkWyamTdEQvzOxlCeJaRtf7cgrIbbVDPRg9y2UhOJqibZjzi0t6jQcHktOhuvtUA9 5MG5Bu8raA6oI5NQZ+UaY6cQUHOEwuQbuN0ZzT/yypTxeyd8La1UGbXt66TlEtJChzJL CtBH7XPoTyeU43mtj//iSxz6YXOArBgyxzRegSYGMoHiVEYo51797rjoDBy+PVSCbNdn NzPg4NMXCnl8wk6+glUv7SGvdFh2gNuSa8StStCzjs8kmbRKn13jj2WTgOYn7sOXDfBn gw== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com (PPS) with ESMTPS id 3kpyjqjp28-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 09 Nov 2022 18:10:00 +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 40AD7100038; Wed, 9 Nov 2022 18:09:53 +0100 (CET) Received: from Webmail-eu.st.com (shfdag1node1.st.com [10.75.129.69]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 7384E2291B0; Wed, 9 Nov 2022 18:09:53 +0100 (CET) Received: from localhost (10.252.3.44) by SHFDAG1NODE1.st.com (10.75.129.69) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.32; Wed, 9 Nov 2022 18:09:53 +0100 From: Olivier Moysan To: Olivier Moysan , Arnaud Pouliquen , Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai , Maxime Coquelin , Alexandre Torgue Subject: [PATCH] ASoC: stm32: dfsdm: manage cb buffers cleanup Date: Wed, 9 Nov 2022 18:08:49 +0100 Message-ID: <20221109170849.273719-1-olivier.moysan@foss.st.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [10.252.3.44] X-ClientProxiedBy: EQNCAS1NODE4.st.com (10.75.129.82) To SHFDAG1NODE1.st.com (10.75.129.69) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.895,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2022-11-09_06,2022-11-09_01,2022-06-22_01 Cc: alsa-devel@alsa-project.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org 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" Ensure that resources allocated by iio_channel_get_all_cb() are released on driver unbind. Signed-off-by: Olivier Moysan --- sound/soc/stm/stm32_adfsdm.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/sound/soc/stm/stm32_adfsdm.c b/sound/soc/stm/stm32_adfsdm.c index 643fc8a17018..837c1848d9bf 100644 --- a/sound/soc/stm/stm32_adfsdm.c +++ b/sound/soc/stm/stm32_adfsdm.c @@ -304,6 +304,11 @@ static int stm32_adfsdm_dummy_cb(const void *data, void *private) return 0; } +static void stm32_adfsdm_cleanup(void *data) +{ + iio_channel_release_all_cb(data); +} + static struct snd_soc_component_driver stm32_adfsdm_soc_platform = { .open = stm32_adfsdm_pcm_open, .close = stm32_adfsdm_pcm_close, @@ -350,6 +355,12 @@ static int stm32_adfsdm_probe(struct platform_device *pdev) if (IS_ERR(priv->iio_cb)) return PTR_ERR(priv->iio_cb); + ret = devm_add_action_or_reset(&pdev->dev, stm32_adfsdm_cleanup, priv->iio_cb); + if (ret < 0) { + dev_err(&pdev->dev, "Unable to add action\n"); + return ret; + } + component = devm_kzalloc(&pdev->dev, sizeof(*component), GFP_KERNEL); if (!component) return -ENOMEM;