scsi: megaraid_sas: ldio_outstanding variable is not decremented in completion path

ldio outstanding variable needs to be decremented in io completion path for
iMR dual queue depth
Signed-off-by: Sasikumar Chandrasekaran <sasikumar.pc@broadcom.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/megaraid/megaraid_sas_fusion.c

@@ -2580,7 +2580,6 @@ megasas_build_and_issue_cmd_fusion(struct megasas_instance *instance,
 
 	if (atomic_inc_return(&instance->fw_outstanding) >
 			instance->host->can_queue) {
-		dev_err(&instance->pdev->dev, "Throttle IOs beyond Controller queue depth\n");
 		atomic_dec(&instance->fw_outstanding);
 		return SCSI_MLQUEUE_HOST_BUSY;
 	}
@@ -2811,6 +2810,9 @@ complete_cmd_fusion(struct megasas_instance *instance, u32 MSIxIndex)
 					extStatus, data_length, sense);
 				scsi_io_req->RaidContext.raid_context.status = 0;
 				scsi_io_req->RaidContext.raid_context.ex_status = 0;
+				if (instance->ldio_threshold
+					&& megasas_cmd_type(scmd_local) == READ_WRITE_LDIO)
+					atomic_dec(&instance->ldio_outstanding);
 				megasas_return_cmd_fusion(instance, cmd_fusion);
 				scsi_dma_unmap(scmd_local);
 				scmd_local->scsi_done(scmd_local);
@@ -3959,7 +3961,8 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int reason)
 				scmd_local->result =
 					megasas_check_mpio_paths(instance,
 							scmd_local);
-				if (megasas_cmd_type(scmd_local) == READ_WRITE_LDIO)
+				if (instance->ldio_threshold &&
+					megasas_cmd_type(scmd_local) == READ_WRITE_LDIO)
 					atomic_dec(&instance->ldio_outstanding);
 				megasas_return_cmd_fusion(instance, cmd_fusion);
 				scsi_dma_unmap(scmd_local);