linux-kernel - [PATCH] iio: mtk-auxadc: add mutex

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Message-ID: <20210715093523.29844-2-hui.liu@mediatek.com>
Date:   Thu, 15 Jul 2021 17:35:23 +0800
From:   Hui Liu <hui.liu@...iatek.com>
To:     <robh+dt@...nel.org>, <jic23@...nel.org>, <knaack.h@....de>,
        <lars@...afoo.de>, <pmeerw@...erw.net>
CC:     <srv_heupstream@...iatek.com>, <hui.liu@...iatek.com>,
        <zhiyong.tao@...iatek.com>, <chun-hung.wu@...iatek.com>,
        <yingjoe.chen@...iatek.com>, <seiya.wang@...iatek.com>,
        <matthias.bgg@...il.com>, <s.hauer@...gutronix.de>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-iio@...r.kernel.org>, <linux-mediatek@...ts.infradead.org>
Subject: [PATCH] iio: mtk-auxadc: add mutex_destroy

Add mutex_destroy when probe fail and remove device.

Signed-off-by: Hui Liu <hui.liu@...iatek.com>
---
 drivers/iio/adc/mt6577_auxadc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/iio/adc/mt6577_auxadc.c b/drivers/iio/adc/mt6577_auxadc.c
index 79c1dd68b909..d57243037ad6 100644
--- a/drivers/iio/adc/mt6577_auxadc.c
+++ b/drivers/iio/adc/mt6577_auxadc.c
@@ -289,6 +289,7 @@ static int mt6577_auxadc_probe(struct platform_device *pdev)
 	ret = iio_device_register(indio_dev);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "failed to register iio device\n");
+		mutex_destroy(&adc_dev->lock);
 		goto err_power_off;
 	}
 
@@ -313,6 +314,7 @@ static int mt6577_auxadc_remove(struct platform_device *pdev)
 			      0, MT6577_AUXADC_PDN_EN);
 
 	clk_disable_unprepare(adc_dev->adc_clk);
+	mutex_destroy(&adc_dev->lock);
 
 	return 0;
 }
-- 
2.18.0