linux-kernel - [PATCH -next v2] usb: ehci-exynos: Simplify with scoped for each OF child loop

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Message-ID: <20240821071856.2335529-1-ruanjinjie@huawei.com>
Date: Wed, 21 Aug 2024 15:18:56 +0800
From: Jinjie Ruan <ruanjinjie@...wei.com>
To: <stern@...land.harvard.edu>, <gregkh@...uxfoundation.org>,
	<krzk@...nel.org>, <alim.akhtar@...sung.com>, <linux-usb@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <linux-samsung-soc@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
CC: <ruanjinjie@...wei.com>
Subject: [PATCH -next v2] usb: ehci-exynos: 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>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
v2:
- Update the commit subject.
- Spilit into 2 patches.
- Add Reviewed-by.
---
 drivers/usb/host/ehci-exynos.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/usb/host/ehci-exynos.c b/drivers/usb/host/ehci-exynos.c
index f40bc2a7a124..e3a961d3f5fc 100644
--- a/drivers/usb/host/ehci-exynos.c
+++ b/drivers/usb/host/ehci-exynos.c
@@ -48,7 +48,6 @@ struct exynos_ehci_hcd {
 static int exynos_ehci_get_phy(struct device *dev,
 				struct exynos_ehci_hcd *exynos_ehci)
 {
-	struct device_node *child;
 	struct phy *phy;
 	int phy_number, num_phys;
 	int ret;
@@ -66,26 +65,22 @@ static int exynos_ehci_get_phy(struct device *dev,
 		return 0;
 
 	/* Get PHYs using legacy bindings */
-	for_each_available_child_of_node(dev->of_node, child) {
+	for_each_available_child_of_node_scoped(dev->of_node, child) {
 		ret = of_property_read_u32(child, "reg", &phy_number);
 		if (ret) {
 			dev_err(dev, "Failed to parse device tree\n");
-			of_node_put(child);
 			return ret;
 		}
 
 		if (phy_number >= PHY_NUMBER) {
 			dev_err(dev, "Invalid number of PHYs\n");
-			of_node_put(child);
 			return -EINVAL;
 		}
 
 		phy = devm_of_phy_optional_get(dev, child, NULL);
 		exynos_ehci->phy[phy_number] = phy;
-		if (IS_ERR(phy)) {
-			of_node_put(child);
+		if (IS_ERR(phy))
 			return PTR_ERR(phy);
-		}
 	}
 
 	exynos_ehci->legacy_phy = true;
-- 
2.34.1