[PATCH net-next] net: dsa: add missing of_node_put

[Himadri Pandya]

Decrement the reference count on port while returning out of the
loop. Issue identified by Coccinelle.

Signed-off-by: Himadri Pandya <himadri18.07@xxxxxxxxx>
---
 net/dsa/dsa2.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index a1917025e155..396e7433dd8f 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -624,19 +624,25 @@ static int dsa_switch_parse_ports_of(struct dsa_switch *ds,
 	for_each_available_child_of_node(ports, port) {
 		err = of_property_read_u32(port, "reg", &reg);
 		if (err)
-			return err;
+			goto put_port;
 
-		if (reg >= ds->num_ports)
-			return -EINVAL;
+		if (reg >= ds->num_ports) {
+			err = -EINVAL;
+			goto put_port;
+		}
 
 		dp = &ds->ports[reg];
 
 		err = dsa_port_parse_of(dp, port);
 		if (err)
-			return err;
+			goto put_port;
 	}
 
 	return 0;
+
+put_port:
+	of_node_put(port);
+	return err;
 }
 
 static int dsa_switch_parse_member_of(struct dsa_switch *ds,
-- 
2.17.1