linux-kernel - [PATCH 5.4 154/475] ASoC: msm8916-wcd-analog: Fix error handling in pm8916_wcd_analog_spmi

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Message-Id: <20220414110859.451569017@linuxfoundation.org>
Date:   Thu, 14 Apr 2022 15:08:59 +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, Miaoqian Lin <linmq006@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.4 154/475] ASoC: msm8916-wcd-analog: Fix error handling in pm8916_wcd_analog_spmi_probe

From: Miaoqian Lin <linmq006@...il.com>

[ Upstream commit 9ebd62d60edcd4d9c75485e5ccd0b79581ad3c49 ]

In the error handling path, the clk_prepare_enable() function
call should be balanced by a corresponding 'clk_disable_unprepare()'
call , as already done in the remove function.

Fixes: de66b3455023 ("ASoC: codecs: msm8916-wcd-analog: add MBHC support")
Signed-off-by: Miaoqian Lin <linmq006@...il.com>
Link: https://lore.kernel.org/r/20220316041924.17560-1-linmq006@gmail.com
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 sound/soc/codecs/msm8916-wcd-analog.c | 22 ++++++++++++++++------
 1 file changed, 16 insertions(+), 6 deletions(-)

diff --git a/sound/soc/codecs/msm8916-wcd-analog.c b/sound/soc/codecs/msm8916-wcd-analog.c
index 337bddb7c2a4..5a8eedea6be0 100644
--- a/sound/soc/codecs/msm8916-wcd-analog.c
+++ b/sound/soc/codecs/msm8916-wcd-analog.c
@@ -1195,8 +1195,10 @@ static int pm8916_wcd_analog_spmi_probe(struct platform_device *pdev)
 	}
 
 	irq = platform_get_irq_byname(pdev, "mbhc_switch_int");
-	if (irq < 0)
-		return irq;
+	if (irq < 0) {
+		ret = irq;
+		goto err_disable_clk;
+	}
 
 	ret = devm_request_threaded_irq(dev, irq, NULL,
 			       pm8916_mbhc_switch_irq_handler,
@@ -1208,8 +1210,10 @@ static int pm8916_wcd_analog_spmi_probe(struct platform_device *pdev)
 
 	if (priv->mbhc_btn_enabled) {
 		irq = platform_get_irq_byname(pdev, "mbhc_but_press_det");
-		if (irq < 0)
-			return irq;
+		if (irq < 0) {
+			ret = irq;
+			goto err_disable_clk;
+		}
 
 		ret = devm_request_threaded_irq(dev, irq, NULL,
 				       mbhc_btn_press_irq_handler,
@@ -1220,8 +1224,10 @@ static int pm8916_wcd_analog_spmi_probe(struct platform_device *pdev)
 			dev_err(dev, "cannot request mbhc button press irq\n");
 
 		irq = platform_get_irq_byname(pdev, "mbhc_but_rel_det");
-		if (irq < 0)
-			return irq;
+		if (irq < 0) {
+			ret = irq;
+			goto err_disable_clk;
+		}
 
 		ret = devm_request_threaded_irq(dev, irq, NULL,
 				       mbhc_btn_release_irq_handler,
@@ -1238,6 +1244,10 @@ static int pm8916_wcd_analog_spmi_probe(struct platform_device *pdev)
 	return devm_snd_soc_register_component(dev, &pm8916_wcd_analog,
 				      pm8916_wcd_analog_dai,
 				      ARRAY_SIZE(pm8916_wcd_analog_dai));
+
+err_disable_clk:
+	clk_disable_unprepare(priv->mclk);
+	return ret;
 }
 
 static int pm8916_wcd_analog_spmi_remove(struct platform_device *pdev)
-- 
2.34.1