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authorJames Smart <james.smart@emulex.com>2014-09-03 18:57:43 +0200
committerChristoph Hellwig <hch@lst.de>2014-09-16 18:10:11 +0200
commit7ba36effb666831ac3803ca5b8aed371e7d17c4e (patch)
tree547f593633d8df2803aa2e7a5848c826ac91f631 /drivers/scsi/lpfc/lpfc_hbadisc.c
parentlpfc: fix locking issues with abort data paths (diff)
downloadlinux-7ba36effb666831ac3803ca5b8aed371e7d17c4e.tar.xz
linux-7ba36effb666831ac3803ca5b8aed371e7d17c4e.zip
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>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_hbadisc.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_hbadisc.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
index 2d929a5e8354..310507dede2a 100644
--- a/drivers/scsi/lpfc/lpfc_hbadisc.c
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -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);
}