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usbnet:pegasus: remove usb_get/put_dev in .probe and .disconnect 

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 15:19:40 +00:00 committed by David S. Miller
parent ef9d884dad
commit 5c2f05139a
1 changed files with 0 additions and 4 deletions
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4
drivers/net/usb/pegasus.c
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@ -1329,8 +1329,6 @@ static int pegasus_probe(struct usb_interface *intf,
} }
pegasus_count++; pegasus_count++;
usb_get_dev(dev);
net = alloc_etherdev(sizeof(struct pegasus)); net = alloc_etherdev(sizeof(struct pegasus));
if (!net) if (!net)
goto out; goto out;
@ -1407,7 +1405,6 @@ out2:
out1: out1:
free_netdev(net); free_netdev(net);
out: out:
usb_put_dev(dev);
pegasus_dec_workqueue(); pegasus_dec_workqueue();
return res; return res;
} }
@ -1425,7 +1422,6 @@ static void pegasus_disconnect(struct usb_interface *intf)
pegasus->flags |= PEGASUS_UNPLUG; pegasus->flags |= PEGASUS_UNPLUG;
cancel_delayed_work(&pegasus->carrier_check); cancel_delayed_work(&pegasus->carrier_check);
unregister_netdev(pegasus->net); unregister_netdev(pegasus->net);
usb_put_dev(interface_to_usbdev(intf));
unlink_all_urbs(pegasus); unlink_all_urbs(pegasus);
free_all_urbs(pegasus); free_all_urbs(pegasus);
free_skb_pool(pegasus); free_skb_pool(pegasus);