introduce a recheck for the VF interface name

It's possible to have a race in the VFIsReady function.
vf netdevice can have a default eth0 device name and be the time
we call the netlink syscall to get the device information eth0
can be a different device.

this cause duplicate mac allocation on vf admin mac address

Signed-off-by: Sebastian Sch <sebassch@gmail.com>

pkg/host/internal/sriov/sriov.go

@@ -176,8 +176,12 @@ func (s *sriov) VFIsReady(pciAddr string) (netlink.Link, error) {
 		vfLink, err = s.netlinkLib.LinkByName(vfName)
 		if err != nil {
 			log.Log.Error(err, "VFIsReady(): unable to get VF link", "device", pciAddr)
+			return false, nil
 		}
-		return err == nil, nil
+
+		// try to get the interface name again and check if the name changed
+		vfName = s.networkHelper.TryGetInterfaceName(pciAddr)
+		return vfName == vfLink.Attrs().Name, nil
 	})
 	if err != nil {
 		return vfLink, err