From patchwork Wed Dec 9 13:03:35 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 340854 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=-16.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, 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 2E3CDC4361B for ; Wed, 9 Dec 2020 13:09:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F28BA23BC7 for ; Wed, 9 Dec 2020 13:09:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732090AbgLINF6 (ORCPT ); Wed, 9 Dec 2020 08:05:58 -0500 Received: from esa.microchip.iphmx.com ([68.232.154.123]:14921 "EHLO esa.microchip.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732010AbgLINFl (ORCPT ); Wed, 9 Dec 2020 08:05:41 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1607519140; x=1639055140; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=2gtmPImZJqTqAOcYnnKg5lBBYuivMfmwZUbTvhVYNjo=; b=tCfcW0pteTcBYK4Duy7ME1BB0l8ZPRV0Tfa25slHwAwJdbf3EMSEh8wG DMeVSnPrf8hsiEr+Przk2oF4SMbCkv9vG3cgGPb1utGdziMYrJgqz06ze 0sRKSQWhsBr+faYus1dSZ1mSChTDMwXQk5kk3DCFMgbcTuOIbqCrZAUpM KPhBW9mp6IrB5yHGoZUfoqWwNyGiqZmPzYu+TS49ZilWcVZHgZ5/JqYq6 4GpiONiD+HgnVJ6T48L8syB3E/jArdQRlb3R+aPUNNzL9ritAuU7GwYCp Ue1Eynu3cY/87OeYy3/eNFOk4wZcu/JPJni2l1iyfLHRKgOidZOcSL0bg w==; IronPort-SDR: vFiTbQfk6J4iqVIOgnonrgxCYXxmuQVOL8Za41LC9NtBkiTZHXjCPRDE9B8H4SRPXOCreQHHVm BQ+0It/ump/RY8XjC028FQkuWbOF8EGKyoCu4pevo7Q3+l+XcV2VMqQBrt0BXmZGzKR+CC1H1B tE9syZqKNIQRPKdgz7bHbNK88Y/imOUDnUy+UH8TGuKpDMfg48m5x06nhxe0yjfamwpktEWrck z0/0+1guZwFSvyw8TvtDwjMrBU1jTPdXUMj43KXPapSdJKEIDfF6xASy/Cq5ac3gHs+nB+5iNg VI8= X-IronPort-AV: E=Sophos;i="5.78,405,1599548400"; d="scan'208";a="36780711" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa6.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 09 Dec 2020 06:04:10 -0700 Received: from chn-vm-ex03.mchp-main.com (10.10.85.151) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Wed, 9 Dec 2020 06:04:10 -0700 Received: from m18063-ThinkPad-T460p.microchip.com (10.10.115.15) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server id 15.1.1979.3 via Frontend Transport; Wed, 9 Dec 2020 06:04:04 -0700 From: Claudiu Beznea To: , , , , , , , , CC: , , , , , , Claudiu Beznea Subject: [PATCH v3 4/8] net: macb: unprepare clocks in case of failure Date: Wed, 9 Dec 2020 15:03:35 +0200 Message-ID: <1607519019-19103-5-git-send-email-claudiu.beznea@microchip.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1607519019-19103-1-git-send-email-claudiu.beznea@microchip.com> References: <1607519019-19103-1-git-send-email-claudiu.beznea@microchip.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Unprepare clocks in case of any failure in fu540_c000_clk_init(). Fixes: c218ad559020 ("macb: Add support for SiFive FU540-C000") Signed-off-by: Claudiu Beznea Reviewed-by: Andrew Lunn --- drivers/net/ethernet/cadence/macb_main.c | 24 ++++++++++++++++++------ 1 file changed, 18 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c index 81704985a79b..11bf4f8d32e1 100644 --- a/drivers/net/ethernet/cadence/macb_main.c +++ b/drivers/net/ethernet/cadence/macb_main.c @@ -4420,8 +4420,10 @@ static int fu540_c000_clk_init(struct platform_device *pdev, struct clk **pclk, return err; mgmt = devm_kzalloc(&pdev->dev, sizeof(*mgmt), GFP_KERNEL); - if (!mgmt) - return -ENOMEM; + if (!mgmt) { + err = -ENOMEM; + goto err_disable_clks; + } init.name = "sifive-gemgxl-mgmt"; init.ops = &fu540_c000_ops; @@ -4432,16 +4434,26 @@ static int fu540_c000_clk_init(struct platform_device *pdev, struct clk **pclk, mgmt->hw.init = &init; *tx_clk = devm_clk_register(&pdev->dev, &mgmt->hw); - if (IS_ERR(*tx_clk)) - return PTR_ERR(*tx_clk); + if (IS_ERR(*tx_clk)) { + err = PTR_ERR(*tx_clk); + goto err_disable_clks; + } err = clk_prepare_enable(*tx_clk); - if (err) + if (err) { dev_err(&pdev->dev, "failed to enable tx_clk (%u)\n", err); - else + *tx_clk = NULL; + goto err_disable_clks; + } else { dev_info(&pdev->dev, "Registered clk switch '%s'\n", init.name); + } return 0; + +err_disable_clks: + macb_clks_disable(*pclk, *hclk, *tx_clk, *rx_clk, *tsu_clk); + + return err; } static int fu540_c000_init(struct platform_device *pdev)