From patchwork Thu Apr 21 20:35:55 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lad Prabhakar X-Patchwork-Id: 12822379 X-Patchwork-Delegate: kieran@bingham.xyz 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 8F2A1C4321E for ; Thu, 21 Apr 2022 20:36:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1392409AbiDUUj1 (ORCPT ); Thu, 21 Apr 2022 16:39:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51850 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1392420AbiDUUj0 (ORCPT ); Thu, 21 Apr 2022 16:39:26 -0400 Received: from relmlie6.idc.renesas.com (relmlor2.renesas.com [210.160.252.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 993AF4DF69; Thu, 21 Apr 2022 13:36:35 -0700 (PDT) X-IronPort-AV: E=Sophos;i="5.90,279,1643641200"; d="scan'208";a="118731532" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 22 Apr 2022 05:36:35 +0900 Received: from localhost.localdomain (unknown [10.226.36.204]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id B74A0401998F; Fri, 22 Apr 2022 05:36:31 +0900 (JST) From: Lad Prabhakar To: Mark Brown , Liam Girdwood , Jaroslav Kysela , Takashi Iwai , alsa-devel@alsa-project.org Cc: Nobuhiro Iwamatsu , Pavel Machek , linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Prabhakar , Biju Das , Lad Prabhakar Subject: [PATCH 3/3] ASoC: sh: rz-ssi: Add a devres action to release the DMA channels Date: Thu, 21 Apr 2022 21:35:55 +0100 Message-Id: <20220421203555.29011-4-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220421203555.29011-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20220421203555.29011-1-prabhakar.mahadev-lad.rj@bp.renesas.com> Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org DMA channels requested by rz_ssi_dma_request() in rz_ssi_probe() were never released in the error path apart from one place. This patch fixes this issue by adding a devres action to release the DMA channels and dropping the single rz_ssi_release_dma_channels() call which was placed in the error path in case devm_snd_soc_register_component() failed. Fixes: 26ac471c5354 ("ASoC: sh: rz-ssi: Add SSI DMAC support") Reported-by: Pavel Machek Signed-off-by: Lad Prabhakar --- sound/soc/sh/rz-ssi.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/sound/soc/sh/rz-ssi.c b/sound/soc/sh/rz-ssi.c index d9a684e71ec3..f04da1bf5680 100644 --- a/sound/soc/sh/rz-ssi.c +++ b/sound/soc/sh/rz-ssi.c @@ -912,6 +912,11 @@ static const struct snd_soc_component_driver rz_ssi_soc_component = { .pcm_construct = rz_ssi_pcm_new, }; +static void rz_ssi_release_dma_channels_action(void *data) +{ + rz_ssi_release_dma_channels(data); +} + static int rz_ssi_probe(struct platform_device *pdev) { struct rz_ssi_priv *ssi; @@ -966,6 +971,11 @@ static int rz_ssi_probe(struct platform_device *pdev) dev_info(&pdev->dev, "DMA enabled"); ssi->playback.transfer = rz_ssi_dma_transfer; ssi->capture.transfer = rz_ssi_dma_transfer; + + ret = devm_add_action_or_reset(&pdev->dev, + rz_ssi_release_dma_channels_action, ssi); + if (ret) + return ret; } ssi->playback.priv = ssi; @@ -1027,8 +1037,6 @@ static int rz_ssi_probe(struct platform_device *pdev) rz_ssi_soc_dai, ARRAY_SIZE(rz_ssi_soc_dai)); if (ret < 0) { - rz_ssi_release_dma_channels(ssi); - pm_runtime_put(ssi->dev); pm_runtime_disable(ssi->dev); reset_control_assert(ssi->rstc);