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net: dsa: Add missing of_node_put() in dsa_port_link_register_of

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[ Upstream commit fc06b2867f ]

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: a20f997010 ("net: dsa: Don't instantiate phylink for CPU/DSA ports unless needed")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Miaoqian Lin 2022-04-20 19:04:08 +08:00 committed by Greg Kroah-Hartman
parent 14cc2044c1
commit 72ae15d5ce
1 changed files with 2 additions and 0 deletions
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2
net/dsa/port.c
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@ -721,8 +721,10 @@ 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,
MLO_AN_FIXED, PHY_INTERFACE_MODE_NA);
of_node_put(phy_np);
return dsa_port_phylink_register(dp);
}
of_node_put(phy_np);
return 0;
}