linux-kernel - [PATCH] clocksource/drivers/arm_arch_timer: Simplify with scoped for each OF child loop

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Message-ID: <20240816150908.142142-1-krzysztof.kozlowski@linaro.org>
Date: Fri, 16 Aug 2024 17:09:08 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Mark Rutland <mark.rutland@....com>,
	Marc Zyngier <maz@...nel.org>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH] clocksource/drivers/arm_arch_timer: 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: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 drivers/clocksource/arm_arch_timer.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index aeafc74181f0..03733101e231 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -1594,7 +1594,6 @@ static int __init arch_timer_mem_of_init(struct device_node *np)
 {
 	struct arch_timer_mem *timer_mem;
 	struct arch_timer_mem_frame *frame;
-	struct device_node *frame_node;
 	struct resource res;
 	int ret = -EINVAL;
 	u32 rate;
@@ -1608,33 +1607,29 @@ static int __init arch_timer_mem_of_init(struct device_node *np)
 	timer_mem->cntctlbase = res.start;
 	timer_mem->size = resource_size(&res);
 
-	for_each_available_child_of_node(np, frame_node) {
+	for_each_available_child_of_node_scoped(np, frame_node) {
 		u32 n;
 		struct arch_timer_mem_frame *frame;
 
 		if (of_property_read_u32(frame_node, "frame-number", &n)) {
 			pr_err(FW_BUG "Missing frame-number.\n");
-			of_node_put(frame_node);
 			goto out;
 		}
 		if (n >= ARCH_TIMER_MEM_MAX_FRAMES) {
 			pr_err(FW_BUG "Wrong frame-number, only 0-%u are permitted.\n",
 			       ARCH_TIMER_MEM_MAX_FRAMES - 1);
-			of_node_put(frame_node);
 			goto out;
 		}
 		frame = &timer_mem->frame[n];
 
 		if (frame->valid) {
 			pr_err(FW_BUG "Duplicated frame-number.\n");
-			of_node_put(frame_node);
 			goto out;
 		}
 
-		if (of_address_to_resource(frame_node, 0, &res)) {
-			of_node_put(frame_node);
+		if (of_address_to_resource(frame_node, 0, &res))
 			goto out;
-		}
+
 		frame->cntbase = res.start;
 		frame->size = resource_size(&res);
 
-- 
2.43.0