In below documentation
https://docs.openshift.com/container-platform/4.18/hardware_enablement/kmm-kernel-module-management.html the command provided for adding SCC to a serviceaccount while deploying KMM in custom namespace is incorrect.

$ oc adm policy add-scc-to-user privileged -z "${serviceAccountName}" [ -n "${namespace}" ]

Above command is giving an error because of incorrect brackets, ideally it should be:

Right Command:
$ oc adm policy add-scc-to-user privileged -z serviceAccountName -n namespace
We can add note below the right command: Replace the 'namespace' argument with the 'operator namespace'.