smsc75xx: check return code from smsc75xx_reset

This patch adds a missing check and error message if smsc75xx_reset
fails.
Signed-off-by: NSteve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/usb/smsc75xx.c

@@ -1163,6 +1163,7 @@ static int smsc75xx_bind(struct usbnet *dev, struct usb_interface *intf)
 
 	/* Init all registers */
 	ret = smsc75xx_reset(dev);
+	check_warn_return(ret, "smsc75xx_reset error %d\n", ret);
 
 	dev->net->netdev_ops = &smsc75xx_netdev_ops;
 	dev->net->ethtool_ops = &smsc75xx_ethtool_ops;