linux-kernel - [PATCH] arch: arm: mach-alpine: Add missing of_node_put() in alphine_cpu

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Message-Id: <20220615132424.3967142-1-windhl@126.com>
Date:   Wed, 15 Jun 2022 21:24:24 +0800
From:   Liang He <windhl@....com>
To:     tsahee@...apurnalabs.com, atenart@...nel.org, linux@...linux.org.uk
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        windhl@....com
Subject: [PATCH] arch: arm: mach-alpine: Add missing of_node_put() in alphine_cpu_pm.c

In alpine_cpu_pm_init(), of_find_compatible_node() will return a node
pointer with refcount incremented. We should use of_node_put() when it
is not used anymore.

Signed-off-by: Liang He <windhl@....com>
---
 arch/arm/mach-alpine/alpine_cpu_pm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/mach-alpine/alpine_cpu_pm.c b/arch/arm/mach-alpine/alpine_cpu_pm.c
index 13ae8412e9ce..cc201a90d23c 100644
--- a/arch/arm/mach-alpine/alpine_cpu_pm.c
+++ b/arch/arm/mach-alpine/alpine_cpu_pm.c
@@ -51,6 +51,8 @@ void __init alpine_cpu_pm_init(void)
 	np = of_find_compatible_node(NULL, NULL, "al,alpine-cpu-resume");
 	al_cpu_resume_regs = of_iomap(np, 0);
 
+	of_node_put(np);
+
 	wakeup_supported = !IS_ERR(al_sysfabric) && al_cpu_resume_regs;
 
 	if (wakeup_supported) {
-- 
2.25.1