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cxgb4vf: recover from failure in cxgb4vf_open() 

If the Link Start fails in cxgb4vf_open(), we need to back out any state
that we've built up ...

Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Casey Leedom 2011-01-11 15:44:40 -08:00 committed by David S. Miller
parent 60dbb011df
commit 343a8d13aa
1 changed files with 10 additions and 5 deletions
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15
drivers/net/cxgb4vf/cxgb4vf_main.c
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@ -749,13 +749,19 @@ static int cxgb4vf_open(struct net_device *dev)
netif_set_real_num_tx_queues(dev, pi->nqsets);
err = netif_set_real_num_rx_queues(dev, pi->nqsets);
if (err)
return err;
set_bit(pi->port_id, &adapter->open_device_map);
goto err_unwind;
err = link_start(dev);
if (err)
return err;
goto err_unwind;
netif_tx_start_all_queues(dev);
set_bit(pi->port_id, &adapter->open_device_map);
return 0;
err_unwind:
if (adapter->open_device_map == 0)
adapter_down(adapter);
return err;
}
/*
@ -764,13 +770,12 @@ static int cxgb4vf_open(struct net_device *dev)
*/
static int cxgb4vf_stop(struct net_device *dev)
{
int ret;
struct port_info *pi = netdev_priv(dev);
struct adapter *adapter = pi->adapter;
netif_tx_stop_all_queues(dev);
netif_carrier_off(dev);
ret = t4vf_enable_vi(adapter, pi->viid, false, false);
t4vf_enable_vi(adapter, pi->viid, false, false);
pi->link_cfg.link_ok = 0;
clear_bit(pi->port_id, &adapter->open_device_map);