diff options
Diffstat (limited to 'drivers/net/usb/usbnet.c')
| -rw-r--r-- | drivers/net/usb/usbnet.c | 39 |
1 files changed, 28 insertions, 11 deletions
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index 37bf4f2c0a44..acd5f1c0e63a 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -590,6 +590,7 @@ static int usbnet_stop (struct net_device *net) dev->flags = 0; del_timer_sync (&dev->delay); tasklet_kill (&dev->bh); + usb_autopm_put_interface(dev->intf); return 0; } @@ -603,9 +604,19 @@ static int usbnet_stop (struct net_device *net) static int usbnet_open (struct net_device *net) { struct usbnet *dev = netdev_priv(net); - int retval = 0; + int retval; struct driver_info *info = dev->driver_info; + if ((retval = usb_autopm_get_interface(dev->intf)) < 0) { + if (netif_msg_ifup (dev)) + devinfo (dev, + "resumption fail (%d) usbnet usb-%s-%s, %s", + retval, + dev->udev->bus->bus_name, dev->udev->devpath, + info->description); + goto done_nopm; + } + // put into "known safe" state if (info->reset && (retval = info->reset (dev)) < 0) { if (netif_msg_ifup (dev)) @@ -659,7 +670,10 @@ static int usbnet_open (struct net_device *net) // delay posting reads until we're fully open tasklet_schedule (&dev->bh); + return retval; done: + usb_autopm_put_interface(dev->intf); +done_nopm: return retval; } @@ -1120,6 +1134,7 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) struct usb_device *xdev; int status; const char *name; + DECLARE_MAC_BUF(mac); name = udev->dev.driver->name; info = (struct driver_info *) prod->driver_info; @@ -1143,6 +1158,7 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) dev = netdev_priv(net); dev->udev = xdev; + dev->intf = udev; dev->driver_info = info; dev->driver_name = name; dev->msg_enable = netif_msg_init (msg_level, NETIF_MSG_DRV @@ -1158,7 +1174,6 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) init_timer (&dev->delay); mutex_init (&dev->phy_mutex); - SET_MODULE_OWNER (net); dev->net = net; strcpy (net->name, "usb%d"); memcpy (net->dev_addr, node_id, sizeof node_id); @@ -1227,14 +1242,11 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) if (status) goto out3; if (netif_msg_probe (dev)) - devinfo (dev, "register '%s' at usb-%s-%s, %s, " - "%02x:%02x:%02x:%02x:%02x:%02x", + devinfo (dev, "register '%s' at usb-%s-%s, %s, %s", udev->dev.driver->name, xdev->bus->bus_name, xdev->devpath, dev->driver_info->description, - net->dev_addr [0], net->dev_addr [1], - net->dev_addr [2], net->dev_addr [3], - net->dev_addr [4], net->dev_addr [5]); + print_mac(mac, net->dev_addr)); // ok, it's ready to go. usb_set_intfdata (udev, dev); @@ -1267,12 +1279,18 @@ int usbnet_suspend (struct usb_interface *intf, pm_message_t message) struct usbnet *dev = usb_get_intfdata(intf); if (!dev->suspend_count++) { - /* accelerate emptying of the rx and queues, to avoid + /* + * accelerate emptying of the rx and queues, to avoid * having everything error out. */ netif_device_detach (dev->net); (void) unlink_urbs (dev, &dev->rxq); (void) unlink_urbs (dev, &dev->txq); + /* + * reattach so runtime management can use and + * wake the device + */ + netif_device_attach (dev->net); } return 0; } @@ -1282,10 +1300,9 @@ int usbnet_resume (struct usb_interface *intf) { struct usbnet *dev = usb_get_intfdata(intf); - if (!--dev->suspend_count) { - netif_device_attach (dev->net); + if (!--dev->suspend_count) tasklet_schedule (&dev->bh); - } + return 0; } EXPORT_SYMBOL_GPL(usbnet_resume); |