diff mbox series

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

Message ID 20240821071856.2335529-1-ruanjinjie@huawei.com (mailing list archive)
State Accepted
Commit 3cc92765a58f82d6ae512d8035d99095bfa7164a
Headers show
Series [-next,v2] usb: ehci-exynos: Simplify with scoped for each OF child loop | expand

Commit Message

Jinjie Ruan Aug. 21, 2024, 7:18 a.m. UTC
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@huawei.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.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(-)

Comments

Alan Stern Aug. 21, 2024, 2:37 p.m. UTC | #1
On Wed, Aug 21, 2024 at 03:18:56PM +0800, Jinjie Ruan wrote:
> 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@huawei.com>
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> ---

Acked-by: Alan Stern <stern@rowland.harvard.edu>

> 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
>
Anand Moon Aug. 21, 2024, 4:57 p.m. UTC | #2
Hi Jinjie,

On Wed, 21 Aug 2024 at 12:42, Jinjie Ruan <ruanjinjie@huawei.com> wrote:
>
> 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@huawei.com>
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> ---
Reviewed-by: Anand Moon <linux.amoon@gmail.com>

Thanks
-Anand
diff mbox series

Patch

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;