scsi: mpi3mr: Fix config page DMA memory leak

scsi: mpi3mr: Fix config page DMA memory leak

[ Upstream commit b9c874a69db75f4900f45fcffc569b884178f8b7 ]

A fix for:

DMA-API: pci 0000:83:00.0: device driver has pending DMA allocations while released from device [count=1]

Fixes: 14ae28221a98 ("scsi: mpi3mr: Add framework to issue config requests")
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Link: https://lore.kernel.org/r/20230302234336.25456-3-thenzl@redhat.com
Acked-by: Sathya Prakash Veerichetty <sathya.prakash@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>