Merge branch 'remotes/lorenzo/pci/switchtec'

- Return -EFAULT instead of unrelated codes for copy_to_user() errors
  (Bjorn Helgaas)

* remotes/lorenzo/pci/switchtec:
  PCI: switchtec: Return -EFAULT for copy_to_user() errors
  PCI: switchtec: Simplify switchtec_dma_mrpc_isr()