linux-kernel - [PATCH v2] misc: ti_fpc202: fix a potential memory leak in probe function

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Message-ID: <tencent_FA1AC670F5CF49873F88A44424F866994A08@qq.com>
Date: Fri, 26 Dec 2025 18:22:43 +0800
From: Felix Gu <gu_0233@...com>
To: romain.gantois@...tlin.com
Cc: gregkh@...uxfoundation.org,
	arnd@...db.de,
	linux-kernel@...r.kernel.org,
	Felix Gu <gu_0233@...com>
Subject: [PATCH v2] misc: ti_fpc202: fix a potential memory leak in probe function

Use for_each_child_of_node_scoped() to simplify the code and ensure the
device node reference is automatically released when the loop scope
ends.

Signed-off-by: Felix Gu <gu_0233@...com>
Reviewed-by: Romain Gantois <romain.gantois@...tlin.com>
---
v2:
 - Fixed spacing in the commit title ("misc: ti_fpc202: ...") as requested by Romain.
 - Added Romain's Reviewed-by tag.

 drivers/misc/ti_fpc202.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/misc/ti_fpc202.c b/drivers/misc/ti_fpc202.c
index 7964e46c7448..8eb2b5ac9850 100644
--- a/drivers/misc/ti_fpc202.c
+++ b/drivers/misc/ti_fpc202.c
@@ -309,7 +309,6 @@ static void fpc202_remove_port(struct fpc202_priv *priv, int port_id)
 static int fpc202_probe(struct i2c_client *client)
 {
 	struct device *dev = &client->dev;
-	struct device_node *i2c_handle;
 	struct fpc202_priv *priv;
 	int ret, port_id;
 
@@ -357,7 +356,7 @@ static int fpc202_probe(struct i2c_client *client)
 
 	bitmap_zero(priv->probed_ports, FPC202_NUM_PORTS);
 
-	for_each_child_of_node(dev->of_node, i2c_handle) {
+	for_each_child_of_node_scoped(dev->of_node, i2c_handle) {
 		ret = of_property_read_u32(i2c_handle, "reg", &port_id);
 		if (ret) {
 			if (ret == -EINVAL)
-- 
2.43.0