linux-kernel - [PATCH -next] net: dsa: sja1105: Simplify with scoped for each OF child loop

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Message-ID: <20240820075047.681223-1-ruanjinjie@huawei.com>
Date: Tue, 20 Aug 2024 15:50:47 +0800
From: Jinjie Ruan <ruanjinjie@...wei.com>
To: <olteanv@...il.com>, <andrew@...n.ch>, <f.fainelli@...il.com>,
	<davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
	<pabeni@...hat.com>, <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>
CC: <ruanjinjie@...wei.com>
Subject: [PATCH -next] net: dsa: sja1105: 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>
---
 drivers/net/dsa/sja1105/sja1105_main.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/net/dsa/sja1105/sja1105_main.c b/drivers/net/dsa/sja1105/sja1105_main.c
index c7282ce3d11c..bc7e50dcb57c 100644
--- a/drivers/net/dsa/sja1105/sja1105_main.c
+++ b/drivers/net/dsa/sja1105/sja1105_main.c
@@ -1188,9 +1188,8 @@ static int sja1105_parse_ports_node(struct sja1105_private *priv,
 				    struct device_node *ports_node)
 {
 	struct device *dev = &priv->spidev->dev;
-	struct device_node *child;
 
-	for_each_available_child_of_node(ports_node, child) {
+	for_each_available_child_of_node_scoped(ports_node, child) {
 		struct device_node *phy_node;
 		phy_interface_t phy_mode;
 		u32 index;
@@ -1200,7 +1199,6 @@ static int sja1105_parse_ports_node(struct sja1105_private *priv,
 		if (of_property_read_u32(child, "reg", &index) < 0) {
 			dev_err(dev, "Port number not defined in device tree "
 				"(property \"reg\")\n");
-			of_node_put(child);
 			return -ENODEV;
 		}
 
@@ -1210,7 +1208,6 @@ static int sja1105_parse_ports_node(struct sja1105_private *priv,
 			dev_err(dev, "Failed to read phy-mode or "
 				"phy-interface-type property for port %d\n",
 				index);
-			of_node_put(child);
 			return -ENODEV;
 		}
 
@@ -1219,7 +1216,6 @@ static int sja1105_parse_ports_node(struct sja1105_private *priv,
 			if (!of_phy_is_fixed_link(child)) {
 				dev_err(dev, "phy-handle or fixed-link "
 					"properties missing!\n");
-				of_node_put(child);
 				return -ENODEV;
 			}
 			/* phy-handle is missing, but fixed-link isn't.
@@ -1233,10 +1229,8 @@ static int sja1105_parse_ports_node(struct sja1105_private *priv,
 		priv->phy_mode[index] = phy_mode;
 
 		err = sja1105_parse_rgmii_delays(priv, index, child);
-		if (err) {
-			of_node_put(child);
+		if (err)
 			return err;
-		}
 	}
 
 	return 0;
-- 
2.34.1