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=-12.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS 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 D35FCC47404 for ; Mon, 7 Oct 2019 13:03:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A80282070B for ; Mon, 7 Oct 2019 13:03:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570453434; bh=qyviMD7Ce4azubl4913BSq3eBFa6+QO2U1AZpLD6+gk=; h=From:To:Cc:Subject:In-Reply-To:Date:List-ID:From; b=qF2/oYNxEbR6FbOgYRmaHxV5bF/q7EcREYNGEaoUV0j0iY5RojSMfcaxrWtOEinhD hYSDOIFI6gZ48oRls0MnJ+5QoAMs69rBSS5quVi4QuOadpFHBcQe552S+0ynBwZeK5 7Ddv0r0Yp399OiawOBS0nYjDggeCJSRHEbKk2RaY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728349AbfJGNDy (ORCPT ); Mon, 7 Oct 2019 09:03:54 -0400 Received: from heliosphere.sirena.org.uk ([172.104.155.198]:50140 "EHLO heliosphere.sirena.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728146AbfJGNDu (ORCPT ); Mon, 7 Oct 2019 09:03:50 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sirena.org.uk; s=20170815-heliosphere; h=Date:Message-Id:In-Reply-To: Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:References: List-Id:List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner: List-Archive; bh=Cfep0rIWMWln/JuLOxx1Em6o0m/piiYjUQUP4jMHOv0=; b=DxajtVCIZ7TS LUoA4FeiAcAzoPTrmWvtbEN1KtrYBEv1W9u2aZ7c252BXAw0zAjorz8kqWIqIWS228TtPZyt0OlxW ypNHjM2RHffgNnU33MjcMIYZEikgtRvvIWjOYveK0Bd7yLHxEBw4HE4OlNyfCBKHboLT8B1KdT8jZ dZuck=; Received: from cpc102320-sgyl38-2-0-cust46.18-2.cable.virginm.net ([82.37.168.47] helo=ypsilon.sirena.org.uk) by heliosphere.sirena.org.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1iHSfP-0003Qq-3C; Mon, 07 Oct 2019 13:03:11 +0000 Received: by ypsilon.sirena.org.uk (Postfix, from userid 1000) id 5DBE7274162F; Mon, 7 Oct 2019 14:03:09 +0100 (BST) From: Mark Brown To: Dan Carpenter Cc: alsa-devel@alsa-project.org, Fabio Estevam , Jaroslav Kysela , kernel-janitors@vger.kernel.org, Liam Girdwood , linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, Mark Brown , Nicolin Chen , Shengjiu Wang , Takashi Iwai , Timur Tabi , Xiubo Li Subject: Applied "ASoC: fsl_mqs: Fix error handling in probe" to the asoc tree In-Reply-To: <20191004102208.GB823@mwanda> X-Patchwork-Hint: ignore Message-Id: <20191007130309.5DBE7274162F@ypsilon.sirena.org.uk> Date: Mon, 7 Oct 2019 14:03:09 +0100 (BST) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The patch ASoC: fsl_mqs: Fix error handling in probe has been applied to the asoc tree at https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.5 All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark >From a9d273671440c439c4f236123c59dd839c1a0eb7 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 4 Oct 2019 13:22:09 +0300 Subject: [PATCH] ASoC: fsl_mqs: Fix error handling in probe There are several problems in the error handling in fsl_mqs_probe(). 1) "ret" isn't initialized on some paths. GCC has a feature which warns about uninitialized variables but the code initializes "ret" to zero at the start of the function so the checking is turned off. 2) "gpr_np" is a pointer so initializing it to zero is confusing and generates a Sparse warning. 3) of_parse_phandle() doesn't return error pointers on error, it returns NULL. 4) If devm_snd_soc_register_component() fails then the function should free the "gpr_np". Fixes: 9e28f6532c61 ("ASoC: fsl_mqs: Add MQS component driver") Signed-off-by: Dan Carpenter Link: https://lore.kernel.org/r/20191004102208.GB823@mwanda Signed-off-by: Mark Brown --- sound/soc/fsl/fsl_mqs.c | 27 +++++++++++++++------------ 1 file changed, 15 insertions(+), 12 deletions(-) diff --git a/sound/soc/fsl/fsl_mqs.c b/sound/soc/fsl/fsl_mqs.c index 7b9cab3a62e7..f7fc44e8fb27 100644 --- a/sound/soc/fsl/fsl_mqs.c +++ b/sound/soc/fsl/fsl_mqs.c @@ -178,10 +178,10 @@ static const struct regmap_config fsl_mqs_regmap_config = { static int fsl_mqs_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; - struct device_node *gpr_np = 0; + struct device_node *gpr_np = NULL; struct fsl_mqs *mqs_priv; void __iomem *regs; - int ret = 0; + int ret; mqs_priv = devm_kzalloc(&pdev->dev, sizeof(*mqs_priv), GFP_KERNEL); if (!mqs_priv) @@ -198,17 +198,16 @@ static int fsl_mqs_probe(struct platform_device *pdev) if (mqs_priv->use_gpr) { gpr_np = of_parse_phandle(np, "gpr", 0); - if (IS_ERR(gpr_np)) { + if (!gpr_np) { dev_err(&pdev->dev, "failed to get gpr node by phandle\n"); - ret = PTR_ERR(gpr_np); - goto out; + return -EINVAL; } mqs_priv->regmap = syscon_node_to_regmap(gpr_np); if (IS_ERR(mqs_priv->regmap)) { dev_err(&pdev->dev, "failed to get gpr regmap\n"); ret = PTR_ERR(mqs_priv->regmap); - goto out; + goto err_free_gpr_np; } } else { regs = devm_platform_ioremap_resource(pdev, 0); @@ -229,7 +228,7 @@ static int fsl_mqs_probe(struct platform_device *pdev) if (IS_ERR(mqs_priv->ipg)) { dev_err(&pdev->dev, "failed to get the clock: %ld\n", PTR_ERR(mqs_priv->ipg)); - goto out; + return PTR_ERR(mqs_priv->ipg); } } @@ -237,17 +236,21 @@ static int fsl_mqs_probe(struct platform_device *pdev) if (IS_ERR(mqs_priv->mclk)) { dev_err(&pdev->dev, "failed to get the clock: %ld\n", PTR_ERR(mqs_priv->mclk)); - goto out; + ret = PTR_ERR(mqs_priv->mclk); + goto err_free_gpr_np; } dev_set_drvdata(&pdev->dev, mqs_priv); pm_runtime_enable(&pdev->dev); - return devm_snd_soc_register_component(&pdev->dev, &soc_codec_fsl_mqs, + ret = devm_snd_soc_register_component(&pdev->dev, &soc_codec_fsl_mqs, &fsl_mqs_dai, 1); -out: - if (!IS_ERR(gpr_np)) - of_node_put(gpr_np); + if (ret) + goto err_free_gpr_np; + return 0; + +err_free_gpr_np: + of_node_put(gpr_np); return ret; } -- 2.20.1