[PATCH 5.15 19/32] net: dsa: Add missing of_node_put() in dsa_port_parse_of

[Greg Kroah-Hartman]

From: Miaoqian Lin <linmq006@xxxxxxxxx>

[ 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@xxxxxxxxx>
Link: https://lore.kernel.org/r/20220316082602.10785-1-linmq006@xxxxxxxxx
Signed-off-by: Paolo Abeni <pabeni@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 net/dsa/dsa2.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index e9911b18bdbf..e7fa8ce41a4c 100644
--- 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;
 
-- 
2.34.1