diff options
Diffstat (limited to 'drivers/net/usb/pegasus.c')
-rw-r--r-- | drivers/net/usb/pegasus.c | 41 |
1 files changed, 28 insertions, 13 deletions
diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c index 7914867..075e8e9 100644 --- a/drivers/net/usb/pegasus.c +++ b/drivers/net/usb/pegasus.c @@ -1213,7 +1213,7 @@ static void pegasus_set_multicast(struct net_device *net) pegasus->eth_regs[EthCtrl0] |= RX_MULTICAST; pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS; if (netif_msg_link(pegasus)) - pr_info("%s: set allmulti\n", net->name); + pr_debug("%s: set allmulti\n", net->name); } else { pegasus->eth_regs[EthCtrl0] &= ~RX_MULTICAST; pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS; @@ -1273,6 +1273,7 @@ static inline void setup_pegasus_II(pegasus_t * pegasus) } +static int pegasus_count; static struct workqueue_struct *pegasus_workqueue = NULL; #define CARRIER_CHECK_DELAY (2 * HZ) @@ -1301,6 +1302,18 @@ static int pegasus_blacklisted(struct usb_device *udev) return 0; } +/* we rely on probe() and remove() being serialized so we + * don't need extra locking on pegasus_count. + */ +static void pegasus_dec_workqueue(void) +{ + pegasus_count--; + if (pegasus_count == 0) { + destroy_workqueue(pegasus_workqueue); + pegasus_workqueue = NULL; + } +} + static int pegasus_probe(struct usb_interface *intf, const struct usb_device_id *id) { @@ -1309,14 +1322,18 @@ static int pegasus_probe(struct usb_interface *intf, pegasus_t *pegasus; int dev_index = id - pegasus_ids; int res = -ENOMEM; - DECLARE_MAC_BUF(mac); - usb_get_dev(dev); + if (pegasus_blacklisted(dev)) + return -ENODEV; - if (pegasus_blacklisted(dev)) { - res = -ENODEV; - goto out; + if (pegasus_count == 0) { + pegasus_workqueue = create_singlethread_workqueue("pegasus"); + if (!pegasus_workqueue) + return -ENOMEM; } + pegasus_count++; + + usb_get_dev(dev); net = alloc_etherdev(sizeof(struct pegasus)); if (!net) { @@ -1386,10 +1403,10 @@ static int pegasus_probe(struct usb_interface *intf, queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, CARRIER_CHECK_DELAY); - dev_info(&intf->dev, "%s, %s, %s\n", + dev_info(&intf->dev, "%s, %s, %pM\n", net->name, usb_dev_id[dev_index].name, - print_mac(mac, net->dev_addr)); + net->dev_addr); return 0; out3: @@ -1401,6 +1418,7 @@ out1: free_netdev(net); out: usb_put_dev(dev); + pegasus_dec_workqueue(); return res; } @@ -1426,6 +1444,7 @@ static void pegasus_disconnect(struct usb_interface *intf) pegasus->rx_skb = NULL; } free_netdev(pegasus->net); + pegasus_dec_workqueue(); } static int pegasus_suspend (struct usb_interface *intf, pm_message_t message) @@ -1469,7 +1488,7 @@ static struct usb_driver pegasus_driver = { .resume = pegasus_resume, }; -static void parse_id(char *id) +static void __init parse_id(char *id) { unsigned int vendor_id=0, device_id=0, flags=0, i=0; char *token, *name=NULL; @@ -1505,15 +1524,11 @@ static int __init pegasus_init(void) pr_info("%s: %s, " DRIVER_DESC "\n", driver_name, DRIVER_VERSION); if (devid) parse_id(devid); - pegasus_workqueue = create_singlethread_workqueue("pegasus"); - if (!pegasus_workqueue) - return -ENOMEM; return usb_register(&pegasus_driver); } static void __exit pegasus_exit(void) { - destroy_workqueue(pegasus_workqueue); usb_deregister(&pegasus_driver); } |