- Fix races in vfio-ccw request handling.
Merge tag 'vfio-ccw-20210520' of https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/vfio-ccw into fixes

Avoid some races in vfio-ccw request handling.

* tag 'vfio-ccw-20210520' of https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/vfio-ccw:
  vfio-ccw: Serialize FSM IDLE state with I/O completion
  vfio-ccw: Reset FSM state to IDLE inside FSM
  vfio-ccw: Check initialized flag in cp_init()

Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>