1 files changed, 7 insertions, 6 deletions

diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index 56e46090526b..c442051d5a55 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -509,21 +509,22 @@ static int dsa_cpu_parse(struct dsa_port *port, u32 index,
                 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;
 }