linux-kernel - [PATCH 4.19 110/639] clk: armada-370: fix refcount leak in a370_clk

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Message-Id: <20200124093101.132192633@linuxfoundation.org>
Date:   Fri, 24 Jan 2020 10:24:40 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Yangtao Li <tiny.windzz@...il.com>,
        Gregory CLEMENT <gregory.clement@...tlin.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 110/639] clk: armada-370: fix refcount leak in a370_clk_init()

From: Yangtao Li <tiny.windzz@...il.com>

[ Upstream commit a3c24050bdf70c958a8d98c2823b66ea761e6a31 ]

The of_find_compatible_node() returns a node pointer with refcount
incremented, but there is the lack of use of the of_node_put() when
done. Add the missing of_node_put() to release the refcount.

Signed-off-by: Yangtao Li <tiny.windzz@...il.com>
Reviewed-by: Gregory CLEMENT <gregory.clement@...tlin.com>
Fixes: 07ad6836fa21 ("clk: mvebu: armada-370: maintain clock init order")
Signed-off-by: Stephen Boyd <sboyd@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/clk/mvebu/armada-370.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/mvebu/armada-370.c b/drivers/clk/mvebu/armada-370.c
index 2c7c1085f8830..8fdfa97900cd8 100644
--- a/drivers/clk/mvebu/armada-370.c
+++ b/drivers/clk/mvebu/armada-370.c
@@ -177,8 +177,10 @@ static void __init a370_clk_init(struct device_node *np)
 
 	mvebu_coreclk_setup(np, &a370_coreclks);
 
-	if (cgnp)
+	if (cgnp) {
 		mvebu_clk_gating_setup(cgnp, a370_gating_desc);
+		of_node_put(cgnp);
+	}
 }
 CLK_OF_DECLARE(a370_clk, "marvell,armada-370-core-clock", a370_clk_init);
 
-- 
2.20.1