linux-kernel - [PATCH] arch: x86: kernel: Add missing of_node

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Message-Id: <20220615150325.3969911-1-windhl@126.com>
Date:   Wed, 15 Jun 2022 23:03:25 +0800
From:   Liang He <windhl@....com>
To:     tglx@...utronix.de, mingo@...hat.com, bp@...en8.de,
        dave.hansen@...ux.intel.com, x86@...nel.org, hpa@...or.com,
        robh@...nel.org, frank.rowand@...y.com
Cc:     windhl@....com, linux-kernel@...r.kernel.org
Subject: [PATCH] arch: x86: kernel: Add missing of_node_put() in devicetree.c

In dtb_setup_hpet(), 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/x86/kernel/devicetree.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c
index 5cd51f25f446..6a386424ddf7 100644
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -120,6 +120,9 @@ static void __init dtb_setup_hpet(void)
 	if (!dn)
 		return;
 	ret = of_address_to_resource(dn, 0, &r);
+	
+	of_node_put(dn);
+	
 	if (ret) {
 		WARN_ON(1);
 		return;
-- 
2.25.1