linux-kernel - [PATCH 5.10 160/717] mfd: htc-i2cpld: Add the missed i2c_put_adapter() in htcpld_register_chip

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Date:   Mon, 28 Dec 2020 13:42:38 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Jing Xiangfeng <jingxiangfeng@...wei.com>,
        Lee Jones <lee.jones@...aro.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.10 160/717] mfd: htc-i2cpld: Add the missed i2c_put_adapter() in htcpld_register_chip_i2c()

From: Jing Xiangfeng <jingxiangfeng@...wei.com>

[ Upstream commit 9a463284706c5217872c3cadaca863d47129bd95 ]

htcpld_register_chip_i2c() misses to call i2c_put_adapter() in an error
path. Add the missed function call to fix it.

Fixes: 6048a3dd2371 ("mfd: Add HTCPLD driver")
Signed-off-by: Jing Xiangfeng <jingxiangfeng@...wei.com>
Signed-off-by: Lee Jones <lee.jones@...aro.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/mfd/htc-i2cpld.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mfd/htc-i2cpld.c b/drivers/mfd/htc-i2cpld.c
index 247f9849e54ae..417b0355d904d 100644
--- a/drivers/mfd/htc-i2cpld.c
+++ b/drivers/mfd/htc-i2cpld.c
@@ -346,6 +346,7 @@ static int htcpld_register_chip_i2c(
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_BYTE_DATA)) {
 		dev_warn(dev, "i2c adapter %d non-functional\n",
 			 pdata->i2c_adapter_id);
+		i2c_put_adapter(adapter);
 		return -EINVAL;
 	}
 
@@ -360,6 +361,7 @@ static int htcpld_register_chip_i2c(
 		/* I2C device registration failed, contineu with the next */
 		dev_warn(dev, "Unable to add I2C device for 0x%x\n",
 			 plat_chip_data->addr);
+		i2c_put_adapter(adapter);
 		return PTR_ERR(client);
 	}
 
-- 
2.27.0