linux-kernel - [PATCH 3.16 010/129] clk: armada-370: fix refcount leak in a370_clk

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Date:   Sun, 07 Jul 2019 17:54:17 +0100
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, Denis Kirjanov <kda@...ux-powerpc.org>,
        "Gregory CLEMENT" <gregory.clement@...tlin.com>,
        "Stephen Boyd" <sboyd@...nel.org>,
        "Yangtao Li" <tiny.windzz@...il.com>
Subject: [PATCH 3.16 010/129] clk: armada-370: fix refcount leak in
 a370_clk_init()

3.16.70-rc1 review patch.  If anyone has any objections, please let me know.

------------------

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

commit a3c24050bdf70c958a8d98c2823b66ea761e6a31 upstream.

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: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/clk/mvebu/armada-370.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/clk/mvebu/armada-370.c
+++ b/drivers/clk/mvebu/armada-370.c
@@ -168,8 +168,10 @@ static void __init a370_clk_init(struct
 
 	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);