From: Shengjiu Wang <shengjiu.wang@nxp.com>
To: timur@kernel.org, nicoleotsuka@gmail.com, Xiubo.Lee@gmail.com,
festevam@gmail.com, broonie@kernel.org, perex@perex.cz,
tiwai@suse.com, alsa-devel@alsa-project.org
Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: [PATCH] ASoC: fsl_mqs: Fix unchecked return value for clk_prepare_enable
Date: Mon, 22 Jun 2020 16:48:45 +0800 [thread overview]
Message-ID: <1592815725-853-1-git-send-email-shengjiu.wang@nxp.com> (raw)
Fix unchecked return value for clk_prepare_enable.
And because clk_prepare_enable and clk_disable_unprepare should
check input clock parameter is NULL or not, then we don't need
to check it before calling the function.
Fixes: 9e28f6532c61 ("ASoC: fsl_mqs: Add MQS component driver")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
---
sound/soc/fsl/fsl_mqs.c | 23 ++++++++++++++---------
1 file changed, 14 insertions(+), 9 deletions(-)
diff --git a/sound/soc/fsl/fsl_mqs.c b/sound/soc/fsl/fsl_mqs.c
index 0c813a45bba7..69aeb0e71844 100644
--- a/sound/soc/fsl/fsl_mqs.c
+++ b/sound/soc/fsl/fsl_mqs.c
@@ -265,12 +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;
- if (mqs_priv->ipg)
- 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;
+ }
- if (mqs_priv->mclk)
- 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,
@@ -292,11 +300,8 @@ static int fsl_mqs_runtime_suspend(struct device *dev)
regmap_read(mqs_priv->regmap, REG_MQS_CTRL,
&mqs_priv->reg_mqs_ctrl);
- if (mqs_priv->mclk)
- clk_disable_unprepare(mqs_priv->mclk);
-
- if (mqs_priv->ipg)
- clk_disable_unprepare(mqs_priv->ipg);
+ clk_disable_unprepare(mqs_priv->mclk);
+ clk_disable_unprepare(mqs_priv->ipg);
return 0;
}
--
2.21.0
next reply other threads:[~2020-06-22 9:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-22 8:48 Shengjiu Wang [this message]
2020-06-22 16:07 [PATCH] ASoC: fsl_mqs: Fix unchecked return value for clk_prepare_enable Markus Elfring
2020-06-23 5:13 ` Shengjiu Wang
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