scsi: qedf: Log message if scsi_add_host fails

Print message on scsi_add_host failure.
Signed-off-by: NSaurav Kashyap <skashyap@marvell.com>
Signed-off-by: NChad Dupuis <cdupuis@marvell.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/qedf/qedf_main.c

@@ -3330,8 +3330,11 @@ static int __qedf_probe(struct pci_dev *pdev, int mode)
 		host->max_cmd_len = QEDF_MAX_CDB_LEN;
 		host->can_queue = FCOE_PARAMS_NUM_TASKS;
 		rc = scsi_add_host(host, &pdev->dev);
-		if (rc)
+		if (rc) {
+			QEDF_WARN(&qedf->dbg_ctx,
+				  "Error adding Scsi_Host.\n");
 			goto err6;
+		}
 	}
 
 	memset(&params, 0, sizeof(params));