linux-kernel - [PATCH 5.7 052/166] ASoC: fsl_mqs: Fix unchecked return value for clk_prepare

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20200714184118.368907272@linuxfoundation.org>
Date:   Tue, 14 Jul 2020 20:43:37 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Shengjiu Wang <shengjiu.wang@....com>,
        Nicolin Chen <nicoleotsuka@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.7 052/166] ASoC: fsl_mqs: Fix unchecked return value for clk_prepare_enable

From: Shengjiu Wang <shengjiu.wang@....com>

[ Upstream commit 15217d170a4461c1d4c1ea7c497e1fc1122e42a9 ]

Fix unchecked return value for clk_prepare_enable, add error
handler in fsl_mqs_runtime_resume.

Fixes: 9e28f6532c61 ("ASoC: fsl_mqs: Add MQS component driver")
Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
Acked-by: Nicolin Chen <nicoleotsuka@...il.com>
Link: https://lore.kernel.org/r/5edd68d03def367d96268f1a9a00bd528ea5aaf2.1592888591.git.shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 sound/soc/fsl/fsl_mqs.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/sound/soc/fsl/fsl_mqs.c b/sound/soc/fsl/fsl_mqs.c
index b44b134390a39..69aeb0e71844d 100644
--- a/sound/soc/fsl/fsl_mqs.c
+++ b/sound/soc/fsl/fsl_mqs.c
@@ -265,10 +265,20 @@ static int fsl_mqs_remove(struct platform_device *pdev)
 static int fsl_mqs_runtime_resume(struct device *dev)
 {
 	struct fsl_mqs *mqs_priv = dev_get_drvdata(dev);
+	int ret;
 
-	clk_prepare_enable(mqs_priv->ipg);
+	ret = clk_prepare_enable(mqs_priv->ipg);
+	if (ret) {
+		dev_err(dev, "failed to enable ipg clock\n");
+		return ret;
+	}
 
-	clk_prepare_enable(mqs_priv->mclk);
+	ret = clk_prepare_enable(mqs_priv->mclk);
+	if (ret) {
+		dev_err(dev, "failed to enable mclk clock\n");
+		clk_disable_unprepare(mqs_priv->ipg);
+		return ret;
+	}
 
 	if (mqs_priv->use_gpr)
 		regmap_write(mqs_priv->regmap, IOMUXC_GPR2,
-- 
2.25.1