[PATCH 5.18 022/158] power/reset: arm-versatile: Fix refcount leak in versatile_reboot_probe

Greg Kroah-Hartman
2022-07-27T17:32:05Z

From: Miaoqian Lin <linmq006@gmail.com>

[ Upstream commit 80192eff64eee9b3bc0594a47381937b94b9d65a ]

of_find_matching_node_and_match() 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: 0e545f57b708 ("power: reset: driver for the Versatile syscon reboot")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/power/reset/arm-versatile-reboot.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/power/reset/arm-versatile-reboot.c b/drivers/power/reset/arm-versatile-reboot.c
index 08d0a07b58ef..c7624d7611a7 100644
--- a/drivers/power/reset/arm-versatile-reboot.c
+++ b/drivers/power/reset/arm-versatile-reboot.c
@@ -146,6 +146,7 @@ static int __init versatile_reboot_probe(void)
versatile_reboot_type = (enum versatile_reboot)reboot_id->data;

syscon_regmap = syscon_node_to_regmap(np);
+ of_node_put(np);
if (IS_ERR(syscon_regmap))
return PTR_ERR(syscon_regmap);

--
2.35.1