diff options
| -rw-r--r-- | drivers/net/wimax/i2400m/netdev.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/net/wimax/i2400m/netdev.c b/drivers/net/wimax/i2400m/netdev.c index f67af4291f8..599aa4eb9ba 100644 --- a/drivers/net/wimax/i2400m/netdev.c +++ b/drivers/net/wimax/i2400m/netdev.c @@ -89,7 +89,10 @@ enum { * The MTU is 1400 or less */ I2400M_MAX_MTU = 1400, - I2400M_TX_TIMEOUT = HZ, + /* 20 secs? yep, this is the maximum timeout that the device + * might take to get out of IDLE / negotiate it with the base + * station. We add 1sec for good measure. */ + I2400M_TX_TIMEOUT = 21 * HZ, I2400M_TX_QLEN = 5, }; @@ -151,6 +154,7 @@ void i2400m_wake_tx_work(struct work_struct *ws) { int result; struct i2400m *i2400m = container_of(ws, struct i2400m, wake_tx_ws); + struct net_device *net_dev = i2400m->wimax_dev.net_dev; struct device *dev = i2400m_dev(i2400m); struct sk_buff *skb = i2400m->wake_tx_skb; unsigned long flags; @@ -166,6 +170,11 @@ void i2400m_wake_tx_work(struct work_struct *ws) dev_err(dev, "WAKE&TX: skb dissapeared!\n"); goto out_put; } + /* If we have, somehow, lost the connection after this was + * queued, don't do anything; this might be the device got + * reset or just disconnected. */ + if (unlikely(!netif_carrier_ok(net_dev))) + goto out_kfree; result = i2400m_cmd_exit_idle(i2400m); if (result == -EILSEQ) result = 0; @@ -176,7 +185,8 @@ void i2400m_wake_tx_work(struct work_struct *ws) goto error; } result = wait_event_timeout(i2400m->state_wq, - i2400m->state != I2400M_SS_IDLE, 5 * HZ); + i2400m->state != I2400M_SS_IDLE, + net_dev->watchdog_timeo - HZ/2); if (result == 0) result = -ETIMEDOUT; if (result < 0) { @@ -187,8 +197,9 @@ void i2400m_wake_tx_work(struct work_struct *ws) } msleep(20); /* device still needs some time or it drops it */ result = i2400m_tx(i2400m, skb->data, skb->len, I2400M_PT_DATA); - netif_wake_queue(i2400m->wimax_dev.net_dev); error: + netif_wake_queue(net_dev); +out_kfree: kfree_skb(skb); /* refcount transferred by _hard_start_xmit() */ out_put: i2400m_put(i2400m); |