diff options
Diffstat (limited to 'drivers/thunderbolt')
| -rw-r--r-- | drivers/thunderbolt/switch.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c index bc91887f24c3..2c44b24bc5d0 100644 --- a/drivers/thunderbolt/switch.c +++ b/drivers/thunderbolt/switch.c @@ -724,6 +724,12 @@ static int tb_init_port(struct tb_port *port) int res; int cap; + INIT_LIST_HEAD(&port->list); + + /* Control adapter does not have configuration space */ + if (!port->port) + return 0; + res = tb_port_read(port, &port->config, TB_CFG_PORT, 0, 8); if (res) { if (res == -ENODEV) { @@ -736,7 +742,7 @@ static int tb_init_port(struct tb_port *port) } /* Port 0 is the switch itself and has no PHY. */ - if (port->config.type == TB_TYPE_PORT && port->port != 0) { + if (port->config.type == TB_TYPE_PORT) { cap = tb_port_find_cap(port, TB_PORT_CAP_PHY); if (cap > 0) @@ -762,7 +768,7 @@ static int tb_init_port(struct tb_port *port) if (!port->ctl_credits) port->ctl_credits = 2; - } else if (port->port != 0) { + } else { cap = tb_port_find_cap(port, TB_PORT_CAP_ADAP); if (cap > 0) port->cap_adap = cap; @@ -773,10 +779,7 @@ static int tb_init_port(struct tb_port *port) ADP_CS_4_TOTAL_BUFFERS_SHIFT; tb_dump_port(port->sw->tb, port); - - INIT_LIST_HEAD(&port->list); return 0; - } static int tb_port_alloc_hopid(struct tb_port *port, bool in, int min_hopid, |