[SCSI] lpfc 8.3.40: Fixed crash during FCoE failover testing.

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

drivers/scsi/lpfc/lpfc_scsi.c

@@ -4074,7 +4074,8 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
 			 cmd->device ? cmd->device->id : 0xffff,
 			 cmd->device ? cmd->device->lun : 0xffff,
 			 lpfc_cmd->status, lpfc_cmd->result,
-			 vport->fc_myDID, pnode->nlp_DID,
+			 vport->fc_myDID,
+			 (pnode) ? pnode->nlp_DID : 0,
 			 phba->sli_rev == LPFC_SLI_REV4 ?
 			     lpfc_cmd->cur_iocbq.sli4_xritag : 0xffff,
 			 pIocbOut->iocb.ulpContext,