1 files changed, 15 insertions, 13 deletions

diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index 56e46090526b..045d8a176279 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -219,7 +219,7 @@ static int dsa_dsa_port_apply(struct dsa_port *port)
 	struct dsa_switch *ds = port->ds;
 	int err;
 
-	err = dsa_cpu_dsa_setup(ds, ds->dev, port, port->index);
+	err = dsa_cpu_dsa_setup(port);
 	if (err) {
 		dev_warn(ds->dev, "Failed to setup dsa port %d: %d\n",
 			 port->index, err);
@@ -243,7 +243,7 @@ static int dsa_cpu_port_apply(struct dsa_port *port)
 	struct dsa_switch *ds = port->ds;
 	int err;
 
-	err = dsa_cpu_dsa_setup(ds, ds->dev, port, port->index);
+	err = dsa_cpu_dsa_setup(port);
 	if (err) {
 		dev_warn(ds->dev, "Failed to setup cpu port %d: %d\n",
 			 port->index, err);
@@ -275,7 +275,7 @@ static int dsa_user_port_apply(struct dsa_port *port)
 	if (!name)
 		name = "eth%d";
 
-	err = dsa_slave_create(ds, ds->dev, port->index, name);
+	err = dsa_slave_create(port, name);
 	if (err) {
 		dev_warn(ds->dev, "Failed to create slave %d: %d\n",
 			 port->index, err);
@@ -496,34 +496,36 @@ static int dsa_cpu_parse(struct dsa_port *port, u32 index,
 		if (!ethernet)
 			return -EINVAL;
 		ethernet_dev = of_find_net_device_by_node(ethernet);
+		if (!ethernet_dev)
+			return -EPROBE_DEFER;
 	} else {
 		ethernet_dev = dsa_dev_to_net_device(ds->cd->netdev[index]);
+		if (!ethernet_dev)
+			return -EPROBE_DEFER;
 		dev_put(ethernet_dev);
 	}
 
-	if (!ethernet_dev)
-		return -EPROBE_DEFER;
-
 	if (!dst->cpu_dp) {
 		dst->cpu_dp = port;
 		dst->cpu_dp->netdev = ethernet_dev;
 	}
 
+	/* Initialize cpu_port_mask now for drv->setup()
+	 * to have access to a correct value, just like what
+	 * net/dsa/dsa.c::dsa_switch_setup_one does.
+	 */
+	ds->cpu_port_mask |= BIT(index);
+
 	tag_protocol = ds->ops->get_tag_protocol(ds);
 	dst->tag_ops = dsa_resolve_tag_protocol(tag_protocol);
 	if (IS_ERR(dst->tag_ops)) {
 		dev_warn(ds->dev, "No tagger for this switch\n");
+		ds->cpu_port_mask &= ~BIT(index);
 		return PTR_ERR(dst->tag_ops);
 	}
 
 	dst->rcv = dst->tag_ops->rcv;
 
-	/* Initialize cpu_port_mask now for drv->setup()
-	 * to have access to a correct value, just like what
-	 * net/dsa/dsa.c::dsa_switch_setup_one does.
-	 */
-	ds->cpu_port_mask |= BIT(index);
-
 	return 0;
 }
 
@@ -576,7 +578,7 @@ static int dsa_dst_parse(struct dsa_switch_tree *dst)
 			return err;
 	}
 
-	if (!dst->cpu_dp->netdev) {
+	if (!dst->cpu_dp) {
 		pr_warn("Tree has no master device\n");
 		return -EINVAL;
 	}