scsi: smartpqi: Avoid crashing kernel for controller issues
authorKevin Barnett <kevin.barnett@microsemi.com>
Fri, 31 Jul 2020 21:01:33 +0000 (16:01 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 29 Oct 2020 09:08:28 +0000 (10:08 +0100)
commit044d8bfb9028993c248df4ef0a97b46b6dcc41d1
treedbb0f989beb1670990b7c3489a6ebcbce98bf79c
parent651984d53d5418e0de9b1f8047f8b7ff097eb7b2
scsi: smartpqi: Avoid crashing kernel for controller issues

[ Upstream commit 9e68cccc8ef7206f0bccd590378d0dca8f9b4f57 ]

Eliminate kernel panics when getting invalid responses from controller.
Take controller offline instead of causing kernel panics.

Link: https://lore.kernel.org/r/159622929306.30579.16523318707596752828.stgit@brunhilda
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Prasad Munirathnam <Prasad.Munirathnam@microsemi.com>
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/scsi/smartpqi/smartpqi.h
drivers/scsi/smartpqi/smartpqi_init.c