clk: tegra20: Fix refcount leak in tegra20_clock_init

BugLink: https://bugs.launchpad.net/bugs/1996825
[ 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@gmail.com>
Link: https://lore.kernel.org/r/20220523152811.19692-1-linmq006@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>

diff --git a/drivers/clk/tegra/clk-tegra20.c b/drivers/clk/tegra/clk-tegra20.c
index 3664593a5ba4e401d5b1cdd99a8a426671dc0c31..d246a39a6b4f029154bb36cde7f92a5da2a375c8 100644 (file)
--- a/drivers/clk/tegra/clk-tegra20.c
+++ b/drivers/clk/tegra/clk-tegra20.c
@@ -1128,6 +1128,7 @@ 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();