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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: James Smart <james.smart@emulex.com>
Signed-off-by: Dick Kennedy <dick.kennedy@emulex.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
James Smart 2014-09-03 12:57:43 -04:00 committed by Christoph Hellwig
parent 9bd2bff5e7
commit 7ba36effb6
1 changed files with 12 additions and 0 deletions
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12
drivers/scsi/lpfc/lpfc_hbadisc.c
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@ -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);
}