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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AFCBDC35295 for ; Wed, 4 May 2022 17:32:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1359152AbiEDRfu (ORCPT ); Wed, 4 May 2022 13:35:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40998 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1356983AbiEDRJw (ORCPT ); Wed, 4 May 2022 13:09:52 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8BA114830B; Wed, 4 May 2022 09:56:53 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id F22C5B827A3; Wed, 4 May 2022 16:56:51 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A15DBC385A5; Wed, 4 May 2022 16:56:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1651683410; bh=ILpcJ1EnEQUwhSywYQ3IAqyxmDYiAyN1DkLdFFHSEvU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=F5CoNnl27rR9eOUEV65JcK9fdfJ8/iWGdgtpeg/Z/XYie8jcDiimz5sjBp7FHQt3d ZIXpB4XyDOlwg9ohzGlIYFZg4ZZzv7Cz1sB9+VEc3+6D7G35pVCoIR3V3Ch17m/kMt ktgNWpGyIkXvR7Ye/bXTDda3ch197ixCR58zCagQ= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Heiner Kallweit , Vinod Koul , Sasha Levin Subject: [PATCH 5.17 095/225] phy: amlogic: fix error path in phy_g12a_usb3_pcie_probe() Date: Wed, 4 May 2022 18:45:33 +0200 Message-Id: <20220504153119.292839850@linuxfoundation.org> X-Mailer: git-send-email 2.36.0 In-Reply-To: <20220504153110.096069935@linuxfoundation.org> References: <20220504153110.096069935@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Heiner Kallweit [ Upstream commit 2c8045d48dee703ad8eab2be7d6547765a89c069 ] If clk_prepare_enable() fails we call clk_disable_unprepare() in the error path what results in a warning that the clock is disabled and unprepared already. And if we fail later in phy_g12a_usb3_pcie_probe() then we bail out w/o calling clk_disable_unprepare(). This patch fixes both errors. Fixes: 36077e16c050 ("phy: amlogic: Add Amlogic G12A USB3 + PCIE Combo PHY Driver") Signed-off-by: Heiner Kallweit Link: https://lore.kernel.org/r/8e416f95-1084-ee28-860e-7884f7fa2e32@gmail.com Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin --- .../phy/amlogic/phy-meson-g12a-usb3-pcie.c | 20 +++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) diff --git a/drivers/phy/amlogic/phy-meson-g12a-usb3-pcie.c b/drivers/phy/amlogic/phy-meson-g12a-usb3-pcie.c index 5b471ab80fe2..54d65a6f0fcc 100644 --- a/drivers/phy/amlogic/phy-meson-g12a-usb3-pcie.c +++ b/drivers/phy/amlogic/phy-meson-g12a-usb3-pcie.c @@ -414,19 +414,19 @@ static int phy_g12a_usb3_pcie_probe(struct platform_device *pdev) ret = clk_prepare_enable(priv->clk_ref); if (ret) - goto err_disable_clk_ref; + return ret; priv->reset = devm_reset_control_array_get_exclusive(dev); - if (IS_ERR(priv->reset)) - return PTR_ERR(priv->reset); + if (IS_ERR(priv->reset)) { + ret = PTR_ERR(priv->reset); + goto err_disable_clk_ref; + } priv->phy = devm_phy_create(dev, np, &phy_g12a_usb3_pcie_ops); if (IS_ERR(priv->phy)) { ret = PTR_ERR(priv->phy); - if (ret != -EPROBE_DEFER) - dev_err(dev, "failed to create PHY\n"); - - return ret; + dev_err_probe(dev, ret, "failed to create PHY\n"); + goto err_disable_clk_ref; } phy_set_drvdata(priv->phy, priv); @@ -434,8 +434,12 @@ static int phy_g12a_usb3_pcie_probe(struct platform_device *pdev) phy_provider = devm_of_phy_provider_register(dev, phy_g12a_usb3_pcie_xlate); + if (IS_ERR(phy_provider)) { + ret = PTR_ERR(phy_provider); + goto err_disable_clk_ref; + } - return PTR_ERR_OR_ZERO(phy_provider); + return 0; err_disable_clk_ref: clk_disable_unprepare(priv->clk_ref); -- 2.35.1