linux-kernel - [PATCH 5.11 162/601] usb: typec: stusb160x: fix return value check in stusb160x

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Date:   Wed, 12 May 2021 16:43:59 +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, Hulk Robot <hulkci@...wei.com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Amelie Delaunay <amelie.delaunay@...s.st.com>,
        Wei Yongjun <weiyongjun1@...wei.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.11 162/601] usb: typec: stusb160x: fix return value check in stusb160x_probe()

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

[ Upstream commit f2d90e07b5df2c7745ae66d2d48cc350d3f1c7d2 ]

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: da0cb6310094 ("usb: typec: add support for STUSB160x Type-C controller family")
Reported-by: Hulk Robot <hulkci@...wei.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Reviewed-by: Amelie Delaunay <amelie.delaunay@...s.st.com>
Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
Link: https://lore.kernel.org/r/20210308094839.3586773-1-weiyongjun1@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/usb/typec/stusb160x.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/typec/stusb160x.c b/drivers/usb/typec/stusb160x.c
index d21750bbbb44..6eaeba9b096e 100644
--- a/drivers/usb/typec/stusb160x.c
+++ b/drivers/usb/typec/stusb160x.c
@@ -682,8 +682,8 @@ static int stusb160x_probe(struct i2c_client *client)
 	}
 
 	fwnode = device_get_named_child_node(chip->dev, "connector");
-	if (IS_ERR(fwnode))
-		return PTR_ERR(fwnode);
+	if (!fwnode)
+		return -ENODEV;
 
 	/*
 	 * When both VDD and VSYS power supplies are present, the low power
-- 
2.30.2