scsi: smartpqi: scsi queuecommand cleanup

minor cleanup of scsi queue command function
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Tomas Henzl <thenzl@redhat.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>

drivers/scsi/smartpqi/smartpqi_init.c

@@ -4514,7 +4514,7 @@ static int pqi_aio_submit_io(struct pqi_ctrl_info *ctrl_info,
 }
 
 static int pqi_scsi_queue_command(struct Scsi_Host *shost,
-				struct scsi_cmnd *scmd)
+	struct scsi_cmnd *scmd)
 {
 	int rc;
 	struct pqi_ctrl_info *ctrl_info;
@@ -4532,6 +4532,12 @@ static int pqi_scsi_queue_command(struct Scsi_Host *shost,
 		return 0;
 	}
 
+	/*
+	 * This is necessary because the SML doesn't zero out this field during
+	 * error recovery.
+	 */
+	scmd->result = 0;
+
 	hwq = blk_mq_unique_tag_to_hwq(blk_mq_unique_tag(scmd->request));
 	if (hwq >= ctrl_info->num_queue_groups)
 		hwq = 0;