scsi: lpfc: Drop nodelist reference on error in lpfc_gen_req()

If we fail to issue the iocb in lpfc_gen_req() we need to drop the nodelist
reference.

Link: https://lore.kernel.org/r/20200910084059.138507-1-hare@suse.deSigned-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/lpfc/lpfc_ct.c

@@ -387,6 +387,8 @@ lpfc_gen_req(struct lpfc_vport *vport, struct lpfc_dmabuf *bmp,
 	rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, geniocb, 0);
 
 	if (rc == IOCB_ERROR) {
+		geniocb->context_un.ndlp = NULL;
+		lpfc_nlp_put(ndlp);
 		lpfc_sli_release_iocbq(phba, geniocb);
 		return 1;
 	}