diff options
Diffstat (limited to 'net/dsa/dsa2.c')
| -rw-r--r-- | net/dsa/dsa2.c | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c index af0e2c0394ac..5417f7b1187c 100644 --- a/net/dsa/dsa2.c +++ b/net/dsa/dsa2.c @@ -864,6 +864,14 @@ disconnect: return err; } +static void dsa_switch_teardown_tag_protocol(struct dsa_switch *ds) +{ + const struct dsa_device_ops *tag_ops = ds->dst->tag_ops; + + if (tag_ops->disconnect) + tag_ops->disconnect(ds); +} + static int dsa_switch_setup(struct dsa_switch *ds) { struct dsa_devlink_priv *dl_priv; @@ -953,6 +961,8 @@ static void dsa_switch_teardown(struct dsa_switch *ds) ds->slave_mii_bus = NULL; } + dsa_switch_teardown_tag_protocol(ds); + if (ds->ops->teardown) ds->ops->teardown(ds); @@ -1409,9 +1419,9 @@ static enum dsa_tag_protocol dsa_get_tag_protocol(struct dsa_port *dp, static int dsa_port_parse_cpu(struct dsa_port *dp, struct net_device *master, const char *user_protocol) { + const struct dsa_device_ops *tag_ops = NULL; struct dsa_switch *ds = dp->ds; struct dsa_switch_tree *dst = ds->dst; - const struct dsa_device_ops *tag_ops; enum dsa_tag_protocol default_proto; /* Find out which protocol the switch would prefer. */ @@ -1434,10 +1444,17 @@ static int dsa_port_parse_cpu(struct dsa_port *dp, struct net_device *master, } tag_ops = dsa_find_tagger_by_name(user_protocol); - } else { - tag_ops = dsa_tag_driver_get(default_proto); + if (IS_ERR(tag_ops)) { + dev_warn(ds->dev, + "Failed to find a tagging driver for protocol %s, using default\n", + user_protocol); + tag_ops = NULL; + } } + if (!tag_ops) + tag_ops = dsa_tag_driver_get(default_proto); + if (IS_ERR(tag_ops)) { if (PTR_ERR(tag_ops) == -ENOPROTOOPT) return -EPROBE_DEFER; |