megaraid_sas: Add an i/o barrier
Orabug:
22620626
A barrier should be added to ensure proper ordering of memory mapped
writes.
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Reviewed-by: Kashyap Desai <kashyap.desai@broadcom.com>
Acked-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit
b99dbe56d511eb07de33bfa1b99ac5a6ff76ae08)
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Orabug :
22620626
Signed-off-by: Manjunath Govindashetty <manjunath.govindashetty@oracle.com>