Vineeth Vijayan fe990b7bf6 s390/cio: verify the driver availability for path_event call ... commit dd9cb842fa upstream. 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: 32ef938815 ("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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-02-16 12:56:38 +01:00
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block	2nd batch of s390 updates for 5.15 merge window	2021-09-09 12:55:12 -07:00
char	s390/tape: fix timer initialization in tape_std_assign()	2021-11-18 19:17:17 +01:00
cio	s390/cio: verify the driver availability for path_event call	2022-02-16 12:56:38 +01:00
crypto	s390/ap: Fix hanging ioctl caused by orphaned replies	2021-11-18 19:17:17 +01:00
net	s390/qeth: fix deadlock during failing recovery	2021-09-21 20:02:24 -07:00
scsi	scsi: zfcp: Fix failed recovery on gone remote port with non-NPIV FCP devices	2022-02-01 17:27:00 +01:00
virtio	virtio/s390: get rid of open-coded kvm hypercall	2021-06-28 11:18:28 +02:00
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