linux-kernel - [PATCH 4.19 125/229] clk: tegra20: Fix refcount leak in tegra20_clock

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Message-Id: <20221024113003.050579336@linuxfoundation.org>
Date:   Mon, 24 Oct 2022 13:30:44 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Miaoqian Lin <linmq006@...il.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 125/229] clk: tegra20: Fix refcount leak in tegra20_clock_init

From: Miaoqian Lin <linmq006@...il.com>

[ Upstream commit 4e343bafe03ff68a62f48f8235cf98f2c685468b ]

of_find_matching_node() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not need anymore.
Add missing of_node_put() to avoid refcount leak.

Fixes: 37c26a906527 ("clk: tegra: add clock support for Tegra20")
Signed-off-by: Miaoqian Lin <linmq006@...il.com>
Link: https://lore.kernel.org/r/20220523152811.19692-1-linmq006@gmail.com
Signed-off-by: Stephen Boyd <sboyd@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/clk/tegra/clk-tegra20.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/clk/tegra/clk-tegra20.c b/drivers/clk/tegra/clk-tegra20.c
index 68551effb5ca..5859b8ee1478 100644
--- a/drivers/clk/tegra/clk-tegra20.c
+++ b/drivers/clk/tegra/clk-tegra20.c
@@ -1152,6 +1152,7 @@ static void __init tegra20_clock_init(struct device_node *np)
 	}
 
 	pmc_base = of_iomap(node, 0);
+	of_node_put(node);
 	if (!pmc_base) {
 		pr_err("Can't map pmc registers\n");
 		BUG();
-- 
2.35.1