From: Miaoqian Lin <linmq006@gmail.com>
To: Andrew Lunn <andrew@lunn.ch>,
Vivien Didelot <vivien.didelot@gmail.com>,
Florian Fainelli <f.fainelli@gmail.com>,
Vladimir Oltean <olteanv@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Russell King <linux@armlinux.org.uk>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: linmq006@gmail.com
Subject: [PATCH] net: dsa: Add missing of_node_put() in dsa_port_link_register_of
Date: Wed, 20 Apr 2022 19:04:08 +0800 [thread overview]
Message-ID: <20220420110413.17828-1-linmq006@gmail.com> (raw)
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 <linmq006@gmail.com>
---
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,
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;
}
--
2.17.1
next reply other threads:[~2022-04-20 11:04 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-20 11:04 Miaoqian Lin [this message]
2022-04-22 12:10 ` [PATCH] net: dsa: Add missing of_node_put() in dsa_port_link_register_of patchwork-bot+netdevbpf
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