net: dsa: only check presence of link property

When parsing a port, simply use of_property_read_bool which checks the
presence of a given property, instead of parsing the link phandle.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index dfcb624..06bcdb6 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -590,8 +590,8 @@
 static int dsa_port_parse_of(struct dsa_port *dp, struct device_node *dn)
 {
 	struct device_node *ethernet = of_parse_phandle(dn, "ethernet", 0);
-	struct device_node *link = of_parse_phandle(dn, "link", 0);
 	const char *name = of_get_property(dn, "label", NULL);
+	bool link = of_property_read_bool(dn, "link");
 
 	if (ethernet) {
 		struct net_device *master;