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@xxxxxxxxx>
---
drivers/net/usb/cdc-phonet.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/net/usb/cdc-phonet.c b/drivers/net/usb/cdc-phonet.c
index d848d4d..187c144 100644
--- a/drivers/net/usb/cdc-phonet.c
+++ b/drivers/net/usb/cdc-phonet.c
@@ -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 = {
--
1.7.9.5
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