linux-kernel - [PATCH AUTOSEL 5.15 28/41] mips: mti-malta: Fix refcount leak in malta-time.c

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Date:   Mon, 27 Jun 2022 22:20:47 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Liang He <windhl@....com>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Sasha Levin <sashal@...nel.org>, linux-mips@...r.kernel.org
Subject: [PATCH AUTOSEL 5.15 28/41] mips: mti-malta: Fix refcount leak in malta-time.c

From: Liang He <windhl@....com>

[ Upstream commit 608d94cb84c42585058d692f2fe5d327f8868cdb ]

In update_gic_frequency_dt(), 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>
Signed-off-by: Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/mips/mti-malta/malta-time.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/mips/mti-malta/malta-time.c b/arch/mips/mti-malta/malta-time.c
index bbf1e38e1431..2cb708cdf01a 100644
--- a/arch/mips/mti-malta/malta-time.c
+++ b/arch/mips/mti-malta/malta-time.c
@@ -214,6 +214,8 @@ static void update_gic_frequency_dt(void)
 
 	if (of_update_property(node, &gic_frequency_prop) < 0)
 		pr_err("error updating gic frequency property\n");
+
+	of_node_put(node);
 }
 
 #endif
-- 
2.35.1