net: dsa: Add missing of_node_put() in dsa_port_parse_of

[ Upstream commit cb0b430b4e3acc88c85e0ad2e25f2a25a5765262 ]

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

Fixes: 6d4e5c570c2d ("net: dsa: get port type at parse time")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220316082602.10785-1-linmq006@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index e9911b18bdbfa3f1d2b60a644754790cdd8404c9..e7fa8ce41a4ccc1617e8280714f677a248c06608 100644 (file)
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -1341,6 +1341,7 @@ static int dsa_port_parse_of(struct dsa_port *dp, struct device_node *dn)
                const char *user_protocol;
 
                master = of_find_net_device_by_node(ethernet);
+               of_node_put(ethernet);
                if (!master)
                        return -EPROBE_DEFER;