usbnet: clear OPEN flag in failure path

Ming Lei · davem330 · commit fb13c47b8e5c · 2012-06-22T17:34:17.000-07:00
Without clearing OPEN flag in failure path, runtime or system resume
may submit interrupt/rx URB and start tx queue mistakenly on a
interface in DOWN state.

Signed-off-by: Ming Lei &lt;ming.lei@canonical.com&gt;
Acked-by: Oliver Neukum &lt;oneukum@suse.de&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
@@ -796,11 +796,13 @@ int usbnet_open (struct net_device *net)
 	if (info->manage_power) {
 		retval = info->manage_power(dev, 1);
 		if (retval < 0)
-			goto done;
+			goto done_manage_power_error;
 		usb_autopm_put_interface(dev->intf);
 	}
 	return retval;
 
+done_manage_power_error:
+	clear_bit(EVENT_DEV_OPEN, &dev->flags);
 done:
 	usb_autopm_put_interface(dev->intf);
 done_nopm:
