net/usb/r815x: change the return value for bind functions

Replace 0 with the result from usbnet_cdc_bind().

Signed-off-by: Hayes Wang <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/net/usb/r815x.c

···
 	dev->mii.phy_id = R815x_PHY_ID;
 	dev->mii.supports_gmii = 1;
 
-	return 0;
+	return status;
 }
 
 static int r8152_bind(struct usbnet *dev, struct usb_interface *intf)
···
 	dev->mii.phy_id = R815x_PHY_ID;
 	dev->mii.supports_gmii = 0;
 
-	return 0;
+	return status;
 }
 
 static const struct driver_info r8152_info = {