usbnet: make usbnet_get_link() fall back to ethtool_op_get_link()

Make usbnet_get_link() fall back to ethtool_op_get_link() instead of
defaulting to 1.  
     
This makes usbnet_get_link return valid results without the need for a
driver specific check_connect or mii ops as long as the driver calls
netif_carrier_{on,off}() as appropriate.  cdc_ether is an example of
such a driver.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index aa314907888..c32284ff3f5 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -723,8 +723,8 @@ u32 usbnet_get_link (struct net_device *net)
         if (dev->mii.mdio_read)
                 return mii_link_ok(&dev->mii);
 
-        /* Otherwise, say we're up (to avoid breaking scripts) */
-        return 1;
+        /* Otherwise, dtrt for drivers calling netif_carrier_{on,off} */
+        return ethtool_op_get_link(net);
 }
 EXPORT_SYMBOL_GPL(usbnet_get_link);