linux-kernel - [PATCH -next] ASoC: codec: tlv320adc3xxx: Fix missing clk_disable_unprepare() on error in adc3xxx_i2c

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Date:   Thu, 23 Dec 2021 16:22:12 +0800
From:   Yang Yingliang <yangyingliang@...wei.com>
To:     <linux-kernel@...r.kernel.org>, <alsa-devel@...a-project.org>
CC:     <ricardw@...s.com>, <broonie@...nel.org>
Subject: [PATCH -next] ASoC: codec: tlv320adc3xxx: Fix missing clk_disable_unprepare() on error in adc3xxx_i2c_probe()

Fix the missing clk_disable_unprepare() before return
from adc3xxx_i2c_probe() in the error handling case.

Fixes: e9a3b57efd28 ("ASoC: codec: tlv320adc3xxx: New codec driver")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
---
 sound/soc/codecs/tlv320adc3xxx.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/sound/soc/codecs/tlv320adc3xxx.c b/sound/soc/codecs/tlv320adc3xxx.c
index a683bda7eb36..4baf3d881633 100644
--- a/sound/soc/codecs/tlv320adc3xxx.c
+++ b/sound/soc/codecs/tlv320adc3xxx.c
@@ -1232,21 +1232,21 @@ static int adc3xxx_i2c_probe(struct i2c_client *i2c,
 
 	ret = adc3xxx_parse_dt_gpio(adc3xxx, "ti,dmdin-gpio1", &adc3xxx->gpio_cfg[0]);
 	if (ret < 0)
-		return ret;
+		goto err_unprepare_mclk;
 	ret = adc3xxx_parse_dt_gpio(adc3xxx, "ti,dmclk-gpio2", &adc3xxx->gpio_cfg[1]);
 	if (ret < 0)
-		return ret;
+		goto err_unprepare_mclk;
 	ret = adc3xxx_parse_dt_micbias(adc3xxx, "ti,micbias1-vg", &adc3xxx->micbias_vg[0]);
 	if (ret < 0)
-		return ret;
+		goto err_unprepare_mclk;
 	ret = adc3xxx_parse_dt_micbias(adc3xxx, "ti,micbias2-vg", &adc3xxx->micbias_vg[1]);
 	if (ret < 0)
-		return ret;
+		goto err_unprepare_mclk;
 
 	adc3xxx->regmap = devm_regmap_init_i2c(i2c, &adc3xxx_regmap);
 	if (IS_ERR(adc3xxx->regmap)) {
 		ret = PTR_ERR(adc3xxx->regmap);
-		return ret;
+		goto err_unprepare_mclk;
 	}
 
 	i2c_set_clientdata(i2c, adc3xxx);
@@ -1263,9 +1263,15 @@ static int adc3xxx_i2c_probe(struct i2c_client *i2c,
 
 	ret = snd_soc_register_component(dev,
 			&soc_component_dev_adc3xxx, &adc3xxx_dai, 1);
-	if (ret < 0)
+	if (ret < 0) {
 		dev_err(dev, "Failed to register codec: %d\n", ret);
+		goto err_unprepare_mclk;
+	}
+
+	return 0;
 
+err_unprepare_mclk:
+	clk_disable_unprepare(adc3xxx->mclk);
 	return ret;
 }
 
-- 
2.25.1