netdev - [PATCH] net: stmmac: dwmac-sun8i: add missing of_node_put() in sun8i_dwmac_register_mdio

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Message-ID: <20220428095716.540452-1-yangyingliang@huawei.com>
Date:   Thu, 28 Apr 2022 17:57:16 +0800
From:   Yang Yingliang <yangyingliang@...wei.com>
To:     <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>,
        <linux-sunxi@...ts.linux.dev>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-stm32@...md-mailman.stormreply.com>
CC:     <clabbe.montjoie@...il.com>, <andrew@...n.ch>,
        <davem@...emloft.net>, <kuba@...nel.org>
Subject: [PATCH] net: stmmac: dwmac-sun8i: add missing of_node_put() in sun8i_dwmac_register_mdio_mux()

The node pointer returned by of_get_child_by_name() with refcount incremented,
so add of_node_put() after using it.

Fixes: 634db83b8265 ("net: stmmac: dwmac-sun8i: Handle integrated/external MDIOs")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
index f86cc83003f2..f834472599f7 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
@@ -907,6 +907,7 @@ static int sun8i_dwmac_register_mdio_mux(struct stmmac_priv *priv)
 
 	ret = mdio_mux_init(priv->device, mdio_mux, mdio_mux_syscon_switch_fn,
 			    &gmac->mux_handle, priv, priv->mii);
+	of_node_put(mdio_mux);
 	return ret;
 }
 
-- 
2.25.1