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path: root/drivers/net/usb/pegasus.c
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Diffstat (limited to 'drivers/net/usb/pegasus.c')
-rw-r--r--drivers/net/usb/pegasus.c41
1 files changed, 28 insertions, 13 deletions
diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c
index 7914867110e..075e8e94225 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);
}