An oops can occur when submitting ioaccel2 commands
when the phys_disk pointer is NULL in hpsa_scsi_ioaccel_raid_map.
Happens when there are configuration changes during I/O operations.
If the phys_disk pointer is NULL, send the command down the RAID path.
Reviewed-by: Mahesh Rajashekhara <mahesh.rajashekh...@microsemi.com>
Reviewed-by: Justin Lindley <justin.lind...@microsemi.com>
Reviewed-by: Scott Teel <scott.t...@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barn...@microsemi.com>
Signed-off-by: Don Brace <don.br...@microsemi.com>
---
drivers/scsi/hpsa.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 589b44e..edbecf8 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -4981,6 +4981,8 @@ static int hpsa_scsi_ioaccel_raid_map(struct ctlr_info *h,
return IO_ACCEL_INELIGIBLE;
c->phys_disk = dev->phys_disk[map_index];
+ if (!c->phys_disk)
+ return IO_ACCEL_INELIGIBLE;
disk_handle = dd[map_index].ioaccel_handle;
disk_block = le64_to_cpu(map->disk_starting_blk) +
--
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