s390 updates for 5.17-rc4

- Maintainers and reviewers changes:
  - Add Alexander Gordeev as maintainer for s390.
  - Christian Borntraeger will focus on s390 KVM maintainership and
    stays as s390 reviewer.

- Fix clang build of modules loader KUnit test.

- Fix kernel panic in CIO code on FCES path-event when no driver is
  attached to a device or the driver does not provide the path_event
  function.
s390/cio: verify the driver availability for path_event call

If no driver is attached to a device or the driver does not provide the
path_event function, an FCES path-event on this device could end up in a
kernel-panic. Verify the driver availability before the path_event
function call.

Fixes: 32ef938815c1 ("s390/cio: Add support for FCES status notification")
Cc: stable@vger.kernel.org
Signed-off-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Suggested-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
1 file changed