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Date:   Wed, 20 Apr 2022 19:04:08 +0800
From:   Miaoqian Lin <>
To:     Andrew Lunn <>,
        Vivien Didelot <>,
        Florian Fainelli <>,
        Vladimir Oltean <>,
        "David S. Miller" <>,
        Jakub Kicinski <>,
        Paolo Abeni <>,
        Russell King <>,,
Subject: [PATCH] net: dsa: Add missing of_node_put() in dsa_port_link_register_of

The device_node pointer is returned by of_parse_phandle()  with refcount
incremented. We should use of_node_put() on it when done.
of_node_put() will check for NULL value.

Fixes: a20f997010c4 ("net: dsa: Don't instantiate phylink for CPU/DSA ports unless needed")
Signed-off-by: Miaoqian Lin <>
 net/dsa/port.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/dsa/port.c b/net/dsa/port.c
index 32d472a82241..cdc56ba11f52 100644
--- a/net/dsa/port.c
+++ b/net/dsa/port.c
@@ -1620,8 +1620,10 @@ int dsa_port_link_register_of(struct dsa_port *dp)
 			if (ds->ops->phylink_mac_link_down)
 				ds->ops->phylink_mac_link_down(ds, port,
+			of_node_put(phy_np);
 			return dsa_port_phylink_register(dp);
+		of_node_put(phy_np);
 		return 0;

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