linux-kernel - [PATCH] clk: dove: fix refcount leak in dove_clk

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Date:   Wed, 26 Dec 2018 08:50:13 -0500
From:   Yangtao Li <tiny.windzz@...il.com>
To:     mturquette@...libre.com, sboyd@...nel.org
Cc:     gregory.clement@...tlin.com, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org, Yangtao Li <tiny.windzz@...il.com>
Subject: [PATCH] clk: dove: fix refcount leak in dove_clk_init()

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>
---
 drivers/clk/mvebu/dove.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/mvebu/dove.c b/drivers/clk/mvebu/dove.c
index e0dd99f36bf4..0bd09d33f9cf 100644
--- a/drivers/clk/mvebu/dove.c
+++ b/drivers/clk/mvebu/dove.c
@@ -188,10 +188,14 @@ static void __init dove_clk_init(struct device_node *np)
 
 	mvebu_coreclk_setup(np, &dove_coreclks);
 
-	if (ddnp)
+	if (ddnp) {
 		dove_divider_clk_init(ddnp);
+		of_node_put(ddnp);
+	}
 
-	if (cgnp)
+	if (cgnp) {
 		mvebu_clk_gating_setup(cgnp, dove_gating_desc);
+		of_node_put(cgnp);
+	}
 }
 CLK_OF_DECLARE(dove_clk, "marvell,dove-core-clock", dove_clk_init);
-- 
2.17.0