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linux/drivers/s390
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Vineeth Vijayan dd9cb842fa 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: 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>
History 2022-02-09 22:55:01 +01:00
..
block dax + libnvdimm for v5.17 2022-01-12 15:46:11 -08:00
char TTY/Serial driver updates for 5.17-rc1 2022-01-12 11:21:52 -08:00
cio s390/cio: verify the driver availability for path_event call 2022-02-09 22:55:01 +01:00
crypto s390/zcrypt: CCA control CPRB sending 2021-12-16 19:58:07 +01:00
net Networking changes for 5.17. 2022-01-10 19:06:09 -08:00
scsi scsi: zfcp: Fix failed recovery on gone remote port with non-NPIV FCP devices 2022-01-24 23:30:27 -05:00
virtio virtio/s390: get rid of open-coded kvm hypercall 2021-06-28 11:18:28 +02:00
Makefile s390: remove pointless drivers-y in drivers/s390/Makefile 2019-09-16 13:21:51 +02:00