[PATCH net] net: dsa: return after mdb prepare phase

[Vivien Didelot]

The current code does not return after successfully preparing the MDB
addition on every ports member of a multicast group. Fix this.

Fixes: a1a6b7ea7f2d ("net: dsa: add cross-chip multicast support")
Reported-by: Egil Hjelmeland <pri...@egil-hjelmeland.no>
Signed-off-by: Vivien Didelot <vivien.dide...@savoirfairelinux.com>
---
 net/dsa/switch.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/dsa/switch.c b/net/dsa/switch.c
index e6c06aa349a6..73746fa148f1 100644
--- a/net/dsa/switch.c
+++ b/net/dsa/switch.c
@@ -133,6 +133,8 @@ static int dsa_switch_mdb_add(struct dsa_switch *ds,
                        if (err)
                                return err;
                }
+
+               return 0;
        }
 
        for_each_set_bit(port, group, ds->num_ports)
-- 
2.15.0