s390 updates for the 5.16 merge window #2

- Add PCI automatic error recovery.

- Fix tape driver timer initialization broken during timers api cleanup.

- Fix bogus CPU measurement counters values on CPUs offlining.

- Check the validity of subchanel before reading other fields in
  the schib in cio code.
s390/cio: check the subchannel validity for dev_busid

Check the validity of subchanel before reading other fields in
the schib.

Fixes: d3683c055212 ("s390/cio: add dev_busid sysfs entry for each subchannel")
CC: <stable@vger.kernel.org>
Reported-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Link: https://lore.kernel.org/r/20211105154451.847288-1-vneethv@linux.ibm.com
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
1 file changed