[SCSI] qla2xxx: check for marker IOCB during response queue processing.

Signed-off-by: NSaurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: NChad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

drivers/scsi/qla2xxx/qla_isr.c

@@ -2060,6 +2060,11 @@ void qla24xx_process_response_queue(struct scsi_qla_host *vha,
                 case ELS_IOCB_TYPE:
 			qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
 			break;
+		case MARKER_TYPE:
+			/* Do nothing in this case, this check is to prevent it
+			 * from falling into default case
+			 */
+			break;
 		default:
 			/* Type Not Supported. */
 			ql_dbg(ql_dbg_async, vha, 0x5042,