linux-kernel - [PATCH AUTOSEL 6.10 013/197] net: hisilicon: hns_dsaf_mac: fix OF node leak in hns_mac_get

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Message-ID: <20240925115823.1303019-13-sashal@kernel.org>
Date: Wed, 25 Sep 2024 07:50:32 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
	Simon Horman <horms@...nel.org>,
	Jakub Kicinski <kuba@...nel.org>,
	Sasha Levin <sashal@...nel.org>,
	yisen.zhuang@...wei.com,
	salil.mehta@...wei.com,
	davem@...emloft.net,
	edumazet@...gle.com,
	pabeni@...hat.com,
	shaojijie@...wei.com,
	wojciech.drewek@...el.com,
	liuyonglong@...wei.com,
	netdev@...r.kernel.org
Subject: [PATCH AUTOSEL 6.10 013/197] net: hisilicon: hns_dsaf_mac: fix OF node leak in hns_mac_get_info()

From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

[ Upstream commit 5680cf8d34e1552df987e2f4bb1bff0b2a8c8b11 ]

Driver is leaking OF node reference from
of_parse_phandle_with_fixed_args() in hns_mac_get_info().

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Reviewed-by: Simon Horman <horms@...nel.org>
Link: https://patch.msgid.link/20240827144421.52852-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Jakub Kicinski <kuba@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c
index f75668c479351..616a2768e5048 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c
@@ -933,6 +933,7 @@ static int hns_mac_get_info(struct hns_mac_cb *mac_cb)
 			mac_cb->cpld_ctrl = NULL;
 		} else {
 			syscon = syscon_node_to_regmap(cpld_args.np);
+			of_node_put(cpld_args.np);
 			if (IS_ERR_OR_NULL(syscon)) {
 				dev_dbg(mac_cb->dev, "no cpld-syscon found!\n");
 				mac_cb->cpld_ctrl = NULL;
-- 
2.43.0