linux-kernel - [PATCH 6.0 555/862] usb: typec: anx7411: Use of_get_child_by_name() instead of of_find_node_by

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Message-Id: <20221019083314.503826672@linuxfoundation.org>
Date:   Wed, 19 Oct 2022 10:30:42 +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,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Liang He <windhl@....com>, Sasha Levin <sashal@...nel.org>
Subject: [PATCH 6.0 555/862] usb: typec: anx7411: Use of_get_child_by_name() instead of of_find_node_by_name()

From: Liang He <windhl@....com>

[ Upstream commit e45d7337dc0e4f7f1c2876e1b22c71a544ad12fd ]

In anx7411_typec_switch_probe(), we should call of_get_child_by_name()
instead of of_find_node_by_name() as of_find_xxx API will decrease the
refcount of the 'from' argument.

Fixes: fe6d8a9c8e64 ("usb: typec: anx7411: Add Analogix PD ANX7411 support")
Acked-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Signed-off-by: Liang He <windhl@....com>
Link: https://lore.kernel.org/r/20220915092209.4009273-1-windhl@126.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/usb/typec/anx7411.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/typec/anx7411.c b/drivers/usb/typec/anx7411.c
index c0f0842d443c..f178d0eb47b1 100644
--- a/drivers/usb/typec/anx7411.c
+++ b/drivers/usb/typec/anx7411.c
@@ -1105,7 +1105,7 @@ static int anx7411_typec_switch_probe(struct anx7411_data *ctx,
 	int ret;
 	struct device_node *node;
 
-	node = of_find_node_by_name(dev->of_node, "orientation_switch");
+	node = of_get_child_by_name(dev->of_node, "orientation_switch");
 	if (!node)
 		return 0;
 
@@ -1115,7 +1115,7 @@ static int anx7411_typec_switch_probe(struct anx7411_data *ctx,
 		return ret;
 	}
 
-	node = of_find_node_by_name(dev->of_node, "mode_switch");
+	node = of_get_child_by_name(dev->of_node, "mode_switch");
 	if (!node) {
 		dev_err(dev, "no typec mux exist");
 		ret = -ENODEV;
-- 
2.35.1