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usbnet:cdc-phonet: remove usb_get/put_dev in .probe and .disconnect

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usb_device is parent device of usb_interface in the view of driver
model, so its reference count is always held during .probe/.disconnect
of usb_interface instance.

This patch just removes the unnecessay usb_get/put_dev.

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
tom.leiming@gmail.com 2012-06-11 15:19:41 +00:00 committed by David S. Miller
parent 5c2f05139a
commit 50e7d15391
1 changed files with 1 additions and 3 deletions
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4
drivers/net/usb/cdc-phonet.c
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@ -394,7 +394,7 @@ int usbpn_probe(struct usb_interface *intf, const struct usb_device_id *id)
SET_NETDEV_DEV(dev, &intf->dev);
pnd->dev = dev;
pnd->usb = usb_get_dev(usbdev);
pnd->usb = usbdev;
pnd->intf = intf;
pnd->data_intf = data_intf;
spin_lock_init(&pnd->tx_lock);
@ -440,7 +440,6 @@ out:
static void usbpn_disconnect(struct usb_interface *intf)
{
struct usbpn_dev *pnd = usb_get_intfdata(intf);
struct usb_device *usb = pnd->usb;
if (pnd->disconnected)
return;
@ -449,7 +448,6 @@ static void usbpn_disconnect(struct usb_interface *intf)
usb_driver_release_interface(&usbpn_driver,
(pnd->intf == intf) ? pnd->data_intf : pnd->intf);
unregister_netdev(pnd->dev);
usb_put_dev(usb);
}
static struct usb_driver usbpn_driver = {