linux-kernel - [PATCH -next v2 2/3] of/platform: Simplify with scoped for each OF child

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Message-ID: <20240826062408.2406734-3-ruanjinjie@huawei.com>
Date: Mon, 26 Aug 2024 14:24:07 +0800
From: Jinjie Ruan <ruanjinjie@...wei.com>
To: <robh@...nel.org>, <saravanak@...gle.com>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <krzk@...nel.org>
CC: <ruanjinjie@...wei.com>
Subject: [PATCH -next v2 2/3] of/platform: Simplify with scoped for each OF child

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

Signed-off-by: Jinjie Ruan <ruanjinjie@...wei.com>
---
 drivers/of/platform.c | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index 86be4dfb9323..ebc8f0359a95 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -338,7 +338,6 @@ static int of_platform_bus_create(struct device_node *bus,
 				  struct device *parent, bool strict)
 {
 	const struct of_dev_auxdata *auxdata;
-	struct device_node *child;
 	struct platform_device *dev;
 	const char *bus_id = NULL;
 	void *platform_data = NULL;
@@ -382,13 +381,11 @@ static int of_platform_bus_create(struct device_node *bus,
 	if (!dev || !of_match_node(matches, bus))
 		return 0;
 
-	for_each_child_of_node(bus, child) {
+	for_each_child_of_node_scoped(bus, child) {
 		pr_debug("   create child: %pOF\n", child);
 		rc = of_platform_bus_create(child, matches, lookup, &dev->dev, strict);
-		if (rc) {
-			of_node_put(child);
+		if (rc)
 			break;
-		}
 	}
 	of_node_set_flag(bus, OF_POPULATED_BUS);
 	return rc;
@@ -459,7 +456,6 @@ int of_platform_populate(struct device_node *root,
 			const struct of_dev_auxdata *lookup,
 			struct device *parent)
 {
-	struct device_node *child;
 	int rc = 0;
 
 	root = root ? of_node_get(root) : of_find_node_by_path("/");
@@ -470,12 +466,10 @@ int of_platform_populate(struct device_node *root,
 	pr_debug(" starting at: %pOF\n", root);
 
 	device_links_supplier_sync_state_pause();
-	for_each_child_of_node(root, child) {
+	for_each_child_of_node_scoped(root, child) {
 		rc = of_platform_bus_create(child, matches, lookup, parent, true);
-		if (rc) {
-			of_node_put(child);
+		if (rc)
 			break;
-		}
 	}
 	device_links_supplier_sync_state_resume();
 
-- 
2.34.1