Nil panic in MCM 0.51.0 relese, updateNodeToMachine

[elankath]

How to categorize this issue?

/area quality
/kind bug
/priority 1

What happened:

MC's updateNodeToMachine when unable to find the associated Machine obj for a given node erroneously attempts to print the nil machine objects name. This causes Integration Test failures.

	machine, err := c.getMachineFromNode(node.Name)
	if err != nil {
		klog.Errorf("Unable to handle update event for node %s, couldn't fetch machine %s, Error: %s", machine.Name, err)
		return
	}

What you expected to happen:

No nil access is made.

How to reproduce it (as minimally and precisely as possible):
Run the Integration Tests for any provider.

Anything else we need to know?:
NA

Environment:

NA