linux-kernel - [PATCH 04/11] phy: hisilicon: usb2: Simplify with scoped for each OF child loop

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Message-Id: <20240826-phy-of-node-scope-v1-4-5b4d82582644@linaro.org>
Date: Mon, 26 Aug 2024 12:07:20 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Vinod Koul <vkoul@...nel.org>, 
 Kishon Vijay Abraham I <kishon@...nel.org>, Ray Jui <rjui@...adcom.com>, 
 Scott Branden <sbranden@...adcom.com>, 
 Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>, 
 Chunfeng Yun <chunfeng.yun@...iatek.com>, 
 Matthias Brugger <matthias.bgg@...il.com>, 
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Cc: linux-phy@...ts.infradead.org, linux-arm-kernel@...ts.infradead.org, 
 linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org, 
 linux-arm-msm@...r.kernel.org, 
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH 04/11] phy: hisilicon: usb2: 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.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 drivers/phy/hisilicon/phy-hisi-inno-usb2.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/phy/hisilicon/phy-hisi-inno-usb2.c b/drivers/phy/hisilicon/phy-hisi-inno-usb2.c
index c138cd4807d6..c843923252aa 100644
--- a/drivers/phy/hisilicon/phy-hisi-inno-usb2.c
+++ b/drivers/phy/hisilicon/phy-hisi-inno-usb2.c
@@ -138,7 +138,6 @@ static int hisi_inno_phy_probe(struct platform_device *pdev)
 	struct device_node *np = dev->of_node;
 	struct hisi_inno_phy_priv *priv;
 	struct phy_provider *provider;
-	struct device_node *child;
 	int i = 0;
 	int ret;
 
@@ -162,24 +161,20 @@ static int hisi_inno_phy_probe(struct platform_device *pdev)
 
 	priv->type = (uintptr_t) of_device_get_match_data(dev);
 
-	for_each_child_of_node(np, child) {
+	for_each_child_of_node_scoped(np, child) {
 		struct reset_control *rst;
 		struct phy *phy;
 
 		rst = of_reset_control_get_exclusive(child, NULL);
-		if (IS_ERR(rst)) {
-			of_node_put(child);
+		if (IS_ERR(rst))
 			return PTR_ERR(rst);
-		}
 
 		priv->ports[i].utmi_rst = rst;
 		priv->ports[i].priv = priv;
 
 		phy = devm_phy_create(dev, child, &hisi_inno_phy_ops);
-		if (IS_ERR(phy)) {
-			of_node_put(child);
+		if (IS_ERR(phy))
 			return PTR_ERR(phy);
-		}
 
 		phy_set_bus_width(phy, 8);
 		phy_set_drvdata(phy, &priv->ports[i]);
@@ -187,7 +182,6 @@ static int hisi_inno_phy_probe(struct platform_device *pdev)
 
 		if (i >= INNO_PHY_PORT_NUM) {
 			dev_warn(dev, "Support %d ports in maximum\n", i);
-			of_node_put(child);
 			break;
 		}
 	}

-- 
2.43.0