Merge branch 'nvme-4.20' of git:// into for-linus

Pull NVMe fixes from Christoph:

"Various fixlets all over."

* 'nvme-4.20' of git://
  nvme-rdma: fix double freeing of async event data
  nvme: flush namespace scanning work just before removing namespaces
  nvme: warn when finding multi-port subsystems without multipathing enabled
  nvme-pci: fix surprise removal
  nvme-fc: initialize nvme_req(rq)->ctrl after calling __nvme_fc_init_request()
  nvme: Free ctrl device name on init failure