linux-kernel - [PATCH -next] net: dsa: Simplify with scoped for each OF child loop

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Message-ID: <20240820065804.560603-1-ruanjinjie@huawei.com>
Date: Tue, 20 Aug 2024 14:58:04 +0800
From: Jinjie Ruan <ruanjinjie@...wei.com>
To: <andrew@...n.ch>, <f.fainelli@...il.com>, <olteanv@...il.com>,
	<davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
	<pabeni@...hat.com>, <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC: <ruanjinjie@...wei.com>
Subject: [PATCH -next] net: dsa:  Simplify with scoped for each OF child loop

Use scoped for_each_available_child_of_node_scoped() when iterating over
device nodes to make code a bit simpler.

Signed-off-by: Jinjie Ruan <ruanjinjie@...wei.com>
---
 net/dsa/dsa.c | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index 668c729946ea..77d91cbb0686 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -1264,7 +1264,7 @@ static int dsa_port_parse_of(struct dsa_port *dp, struct device_node *dn)
 static int dsa_switch_parse_ports_of(struct dsa_switch *ds,
 				     struct device_node *dn)
 {
-	struct device_node *ports, *port;
+	struct device_node *ports;
 	struct dsa_port *dp;
 	int err = 0;
 	u32 reg;
@@ -1279,17 +1279,14 @@ static int dsa_switch_parse_ports_of(struct dsa_switch *ds,
 		}
 	}
 
-	for_each_available_child_of_node(ports, port) {
+	for_each_available_child_of_node_scoped(ports, port) {
 		err = of_property_read_u32(port, "reg", &reg);
-		if (err) {
-			of_node_put(port);
+		if (err)
 			goto out_put_node;
-		}
 
 		if (reg >= ds->num_ports) {
 			dev_err(ds->dev, "port %pOF index %u exceeds num_ports (%u)\n",
 				port, reg, ds->num_ports);
-			of_node_put(port);
 			err = -EINVAL;
 			goto out_put_node;
 		}
@@ -1297,10 +1294,8 @@ static int dsa_switch_parse_ports_of(struct dsa_switch *ds,
 		dp = dsa_to_port(ds, reg);
 
 		err = dsa_port_parse_of(dp, port);
-		if (err) {
-			of_node_put(port);
+		if (err)
 			goto out_put_node;
-		}
 	}
 
 out_put_node:
-- 
2.34.1