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=-8.6 required=3.0 tests=DATE_IN_PAST_06_12, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,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 C52CFC352BE for ; Fri, 17 Apr 2020 08:50:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AF58C221EB for ; Fri, 17 Apr 2020 08:50:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730009AbgDQIun (ORCPT ); Fri, 17 Apr 2020 04:50:43 -0400 Received: from mga09.intel.com ([134.134.136.24]:7443 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729999AbgDQIuk (ORCPT ); Fri, 17 Apr 2020 04:50:40 -0400 IronPort-SDR: UwKyoFmV/gntPZEbwPWnqXq8yLGQuYI7z6X7/P6g9QSk7upLGXs6jzV4hGJtqC8VzuqPtnJvBM hNkNQT43VxEw== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Apr 2020 01:50:40 -0700 IronPort-SDR: VDaYhI04bXnxrIgdRX3TvFSDnT3Mfg5N7oy8zUI/vOJTe+h5K225x3dn/AAvSM6lWlBai1cDYp sn8ifT+KwXig== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.72,394,1580803200"; d="scan'208";a="454661472" Received: from bard-ubuntu.sh.intel.com ([10.239.13.33]) by fmsmga005.fm.intel.com with ESMTP; 17 Apr 2020 01:50:35 -0700 From: Bard Liao To: alsa-devel@alsa-project.org, vkoul@kernel.org Cc: linux-kernel@vger.kernel.org, tiwai@suse.de, broonie@kernel.org, gregkh@linuxfoundation.org, jank@cadence.com, srinivas.kandagatla@linaro.org, rander.wang@linux.intel.com, ranjani.sridharan@linux.intel.com, hui.wang@canonical.com, pierre-louis.bossart@linux.intel.com, sanyog.r.kale@intel.com, slawomir.blauciak@intel.com, mengdong.lin@intel.com Subject: [RFC 3/5] soundwire: qcom: fix error handling in probe Date: Fri, 17 Apr 2020 04:55:22 +0800 Message-Id: <20200416205524.2043-4-yung-chuan.liao@linux.intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200416205524.2043-1-yung-chuan.liao@linux.intel.com> References: <20200416205524.2043-1-yung-chuan.liao@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Pierre-Louis Bossart Make sure all error cases are properly handled and all resources freed. Signed-off-by: Pierre-Louis Bossart Signed-off-by: Bard Liao --- drivers/soundwire/qcom.c | 26 +++++++++++++++++--------- 1 file changed, 17 insertions(+), 9 deletions(-) diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c index d6c9ad231873..e08a17c13f92 100644 --- a/drivers/soundwire/qcom.c +++ b/drivers/soundwire/qcom.c @@ -765,12 +765,16 @@ static int qcom_swrm_probe(struct platform_device *pdev) } ctrl->irq = of_irq_get(dev->of_node, 0); - if (ctrl->irq < 0) - return ctrl->irq; + if (ctrl->irq < 0) { + ret = ctrl->irq; + goto err_init; + } ctrl->hclk = devm_clk_get(dev, "iface"); - if (IS_ERR(ctrl->hclk)) - return PTR_ERR(ctrl->hclk); + if (IS_ERR(ctrl->hclk)) { + ret = PTR_ERR(ctrl->hclk); + goto err_init; + } clk_prepare_enable(ctrl->hclk); @@ -787,7 +791,7 @@ static int qcom_swrm_probe(struct platform_device *pdev) ret = qcom_swrm_get_port_config(ctrl); if (ret) - return ret; + goto err_clk; params = &ctrl->bus.params; params->max_dr_freq = DEFAULT_CLK_FREQ; @@ -814,28 +818,32 @@ static int qcom_swrm_probe(struct platform_device *pdev) "soundwire", ctrl); if (ret) { dev_err(dev, "Failed to request soundwire irq\n"); - goto err; + goto err_clk; } ret = sdw_add_bus_master(&ctrl->bus); if (ret) { dev_err(dev, "Failed to register Soundwire controller (%d)\n", ret); - goto err; + goto err_clk; } qcom_swrm_init(ctrl); ret = qcom_swrm_register_dais(ctrl); if (ret) - goto err; + goto err_master_add; dev_info(dev, "Qualcomm Soundwire controller v%x.%x.%x Registered\n", (ctrl->version >> 24) & 0xff, (ctrl->version >> 16) & 0xff, ctrl->version & 0xffff); return 0; -err: + +err_master_add: + sdw_delete_bus_master(&ctrl->bus); +err_clk: clk_disable_unprepare(ctrl->hclk); +err_init: return ret; } -- 2.17.1