linux-kernel - [PATCH v2 07/13] memory: tegra-mc: simplify with scoped for each OF child loop

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Message-Id: <20240816-cleanup-h-of-node-put-memory-v2-7-9eed0ee16b78@linaro.org>
Date: Fri, 16 Aug 2024 12:54:31 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Krzysztof Kozlowski <krzk@...nel.org>, 
 Nicolas Ferre <nicolas.ferre@...rochip.com>, 
 Alexandre Belloni <alexandre.belloni@...tlin.com>, 
 Claudiu Beznea <claudiu.beznea@...on.dev>, 
 Lukasz Luba <lukasz.luba@....com>, Alim Akhtar <alim.akhtar@...sung.com>, 
 Maxime Coquelin <mcoquelin.stm32@...il.com>, 
 Alexandre Torgue <alexandre.torgue@...s.st.com>, 
 Thierry Reding <thierry.reding@...il.com>, 
 Jonathan Hunter <jonathanh@...dia.com>, 
 Santosh Shilimkar <ssantosh@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-pm@...r.kernel.org, linux-samsung-soc@...r.kernel.org, 
 linux-stm32@...md-mailman.stormreply.com, linux-tegra@...r.kernel.org, 
 Jonathan Cameron <Jonathan.Cameron@...wei.com>, 
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v2 07/13] memory: tegra-mc: simplify with scoped for each
 OF child loop

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

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 drivers/memory/tegra/mc.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/memory/tegra/mc.c b/drivers/memory/tegra/mc.c
index 224b488794e5..bd5b58f1fd42 100644
--- a/drivers/memory/tegra/mc.c
+++ b/drivers/memory/tegra/mc.c
@@ -450,7 +450,6 @@ static int load_one_timing(struct tegra_mc *mc,
 
 static int load_timings(struct tegra_mc *mc, struct device_node *node)
 {
-	struct device_node *child;
 	struct tegra_mc_timing *timing;
 	int child_count = of_get_child_count(node);
 	int i = 0, err;
@@ -462,14 +461,12 @@ static int load_timings(struct tegra_mc *mc, struct device_node *node)
 
 	mc->num_timings = child_count;
 
-	for_each_child_of_node(node, child) {
+	for_each_child_of_node_scoped(node, child) {
 		timing = &mc->timings[i++];
 
 		err = load_one_timing(mc, timing, child);
-		if (err) {
-			of_node_put(child);
+		if (err)
 			return err;
-		}
 	}
 
 	return 0;
@@ -477,7 +474,6 @@ static int load_timings(struct tegra_mc *mc, struct device_node *node)
 
 static int tegra_mc_setup_timings(struct tegra_mc *mc)
 {
-	struct device_node *node;
 	u32 ram_code, node_ram_code;
 	int err;
 
@@ -485,14 +481,13 @@ static int tegra_mc_setup_timings(struct tegra_mc *mc)
 
 	mc->num_timings = 0;
 
-	for_each_child_of_node(mc->dev->of_node, node) {
+	for_each_child_of_node_scoped(mc->dev->of_node, node) {
 		err = of_property_read_u32(node, "nvidia,ram-code",
 					   &node_ram_code);
 		if (err || (node_ram_code != ram_code))
 			continue;
 
 		err = load_timings(mc, node);
-		of_node_put(node);
 		if (err)
 			return err;
 		break;

-- 
2.43.0