linux-kernel - [PATCH] perf: arm_pmu: Use of_property

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Message-ID: <20240731191312.1710417-15-robh@kernel.org>
Date: Wed, 31 Jul 2024 13:12:53 -0600
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Will Deacon <will@...nel.org>,
	Mark Rutland <mark.rutland@....com>
Cc: linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] perf: arm_pmu: Use of_property_present()

Use of_property_present() to test for property presence rather than
of_find_property(). This is part of a larger effort to remove callers
of of_find_property() and similar functions. of_find_property() leaks
the DT struct property and data pointers which is a problem for
dynamically allocated nodes which may be freed.

Signed-off-by: Rob Herring (Arm) <robh@...nel.org>
---
 drivers/perf/arm_pmu_platform.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/perf/arm_pmu_platform.c b/drivers/perf/arm_pmu_platform.c
index 4b1a9a92ea11..118170a5cede 100644
--- a/drivers/perf/arm_pmu_platform.c
+++ b/drivers/perf/arm_pmu_platform.c
@@ -59,7 +59,7 @@ static int pmu_parse_percpu_irq(struct arm_pmu *pmu, int irq)
 
 static bool pmu_has_irq_affinity(struct device_node *node)
 {
-	return !!of_find_property(node, "interrupt-affinity", NULL);
+	return of_property_present(node, "interrupt-affinity");
 }
 
 static int pmu_parse_irq_affinity(struct device *dev, int i)
-- 
2.43.0