linux-kernel - [PATCH 4.4 021/183] clk: highbank: fix refcount leak in hb_clk

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Message-Id: <20200128135832.047986798@linuxfoundation.org>
Date:   Tue, 28 Jan 2020 15:04:00 +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>,
        Stephen Boyd <sboyd@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.4 021/183] clk: highbank: fix refcount leak in hb_clk_init()

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

[ Upstream commit 5eb8ba90958de1285120dae5d3a5d2b1a360b3b4 ]

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>
Fixes: 26cae166cff9 ("ARM: highbank: remove custom .init_time hook")
Signed-off-by: Stephen Boyd <sboyd@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/clk/clk-highbank.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/clk/clk-highbank.c b/drivers/clk/clk-highbank.c
index be3a21abb185a..4105066b428ca 100644
--- a/drivers/clk/clk-highbank.c
+++ b/drivers/clk/clk-highbank.c
@@ -294,6 +294,7 @@ static __init struct clk *hb_clk_init(struct device_node *node, const struct clk
 	/* Map system registers */
 	srnp = of_find_compatible_node(NULL, NULL, "calxeda,hb-sregs");
 	hb_clk->reg = of_iomap(srnp, 0);
+	of_node_put(srnp);
 	BUG_ON(!hb_clk->reg);
 	hb_clk->reg += reg;
 
-- 
2.20.1