Merge branch 'pci/switchtec'

- Do dma_mrpc cleanup during switchtec_pci_remove() to match its devm
  ioremapping in switchtec_pci_probe().  Previously the cleanup was done in
  stdev_release(), which used stale pointers if stdev->cdev happened to be
  open when the PCI device was removed (Daniel Stodden)

* pci/switchtec:
  PCI: switchtec: Fix stdev_release() crash after surprise hot remove