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Commit 7ba36eff authored by James Smart's avatar James Smart Committed by Christoph Hellwig
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lpfc: fix crash from page fault caused by use after rport delete 



Fix crash from page fault caused by use after rport delete.

Signed-off-by: default avatarJames Smart <james.smart@emulex.com>
Signed-off-by: default avatarDick Kennedy <dick.kennedy@emulex.com>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
parent 9bd2bff5

drivers/scsi/lpfc/lpfc_hbadisc.c

+12 −0
Original line number Diff line number Diff line
@@ -150,6 +150,17 @@ lpfc_dev_loss_tmo_callbk(struct fc_rport *rport) 


		/* If the WWPN of the rport and ndlp don't match, ignore it */

		if (rport->port_name != wwn_to_u64(ndlp->nlp_portname.u.wwn)) {

			lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,

				"6789 rport name %lx != node port name %lx",

				(unsigned long)rport->port_name,

				(unsigned long)wwn_to_u64(

						ndlp->nlp_portname.u.wwn));

			put_node = rdata->pnode != NULL;

			put_rport = ndlp->rport != NULL;

			rdata->pnode = NULL;

			ndlp->rport = NULL;

			if (put_node)

				lpfc_nlp_put(ndlp);

			put_device(&rport->dev);

			return;

		}
@@ -285,6 +296,7 @@ lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) 
	if (ndlp->nlp_sid != NLP_NO_SID) {

		warn_on = 1;

		/* flush the target */

		ndlp->nlp_add_flag &= ~NLP_IN_DEV_LOSS;

		lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring],

				    ndlp->nlp_sid, 0, LPFC_CTX_TGT);

	}