linux-kernel - [PATCH 5.12 174/677] usb: typec: tps6598x: Fix return value check in tps6598x

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Message-Id: <20210512144843.016334856@linuxfoundation.org>
Date:   Wed, 12 May 2021 16:43:40 +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, Hulk Robot <hulkci@...wei.com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Wei Yongjun <weiyongjun1@...wei.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.12 174/677] usb: typec: tps6598x: Fix return value check in tps6598x_probe()

From: Wei Yongjun <weiyongjun1@...wei.com>

[ Upstream commit 604c75893a01c8a3b5bd6dac55535963cd44c3f5 ]

In case of error, the function device_get_named_child_node() returns
NULL pointer not ERR_PTR(). The IS_ERR() test in the return value check
should be replaced with NULL test.

Fixes: 18a6c866bb19 ("usb: typec: tps6598x: Add USB role switching logic")
Reported-by: Hulk Robot <hulkci@...wei.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
Link: https://lore.kernel.org/r/20210308094841.3587751-1-weiyongjun1@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/usb/typec/tps6598x.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/typec/tps6598x.c b/drivers/usb/typec/tps6598x.c
index 29bd1c5a283c..4038104568f5 100644
--- a/drivers/usb/typec/tps6598x.c
+++ b/drivers/usb/typec/tps6598x.c
@@ -614,8 +614,8 @@ static int tps6598x_probe(struct i2c_client *client)
 		return ret;
 
 	fwnode = device_get_named_child_node(&client->dev, "connector");
-	if (IS_ERR(fwnode))
-		return PTR_ERR(fwnode);
+	if (!fwnode)
+		return -ENODEV;
 
 	tps->role_sw = fwnode_usb_role_switch_get(fwnode);
 	if (IS_ERR(tps->role_sw)) {
-- 
2.30.2