linux-kernel - [PATCH v2] ASoC: fsl: Fix PM disable depth imbalance in fsl_easrc

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Message-ID: <tencent_C0D62E6D89818179A02A04A0C248F0DDC40A@qq.com>
Date:   Thu, 12 Oct 2023 21:03:15 +0800
From:   Zhang Shurong <zhang_shurong@...mail.com>
To:     shengjiu.wang@...il.com
Cc:     Xiubo.Lee@...il.com, festevam@...il.com, nicoleotsuka@...il.com,
        lgirdwood@...il.com, broonie@...nel.org, perex@...ex.cz,
        tiwai@...e.com, alsa-devel@...a-project.org,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        Zhang Shurong <zhang_shurong@...mail.com>
Subject: [PATCH v2] ASoC: fsl: Fix PM disable depth imbalance in fsl_easrc_probe

The pm_runtime_enable will increase power disable depth. Thus
a pairing decrement is needed on the error handling path to
keep it balanced according to context. We fix it by calling
pm_runtime_disable when error returns.

Fixes: 955ac624058f ("ASoC: fsl_easrc: Add EASRC ASoC CPU DAI drivers")
Signed-off-by: Zhang Shurong <zhang_shurong@...mail.com>
---
v1->v2: add Fixes tag

 sound/soc/fsl/fsl_easrc.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/sound/soc/fsl/fsl_easrc.c b/sound/soc/fsl/fsl_easrc.c
index ba62995c909a..ec53bda46a46 100644
--- a/sound/soc/fsl/fsl_easrc.c
+++ b/sound/soc/fsl/fsl_easrc.c
@@ -1966,17 +1966,21 @@ static int fsl_easrc_probe(struct platform_device *pdev)
 					      &fsl_easrc_dai, 1);
 	if (ret) {
 		dev_err(dev, "failed to register ASoC DAI\n");
-		return ret;
+		goto err_pm_disable;
 	}
 
 	ret = devm_snd_soc_register_component(dev, &fsl_asrc_component,
 					      NULL, 0);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to register ASoC platform\n");
-		return ret;
+		goto err_pm_disable;
 	}
 
 	return 0;
+
+err_pm_disable:
+	pm_runtime_disable(&pdev->dev);
+	return ret;
 }
 
 static void fsl_easrc_remove(struct platform_device *pdev)
-- 
2.30.2