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authorJames Smart <jsmart2021@gmail.com>2017-05-16 01:20:38 +0300
committerMartin K. Petersen <martin.petersen@oracle.com>2017-05-17 04:17:28 +0300
commit845d9e8df2fa879e6494e786f290e1fd5560ac8c (patch)
tree233bffeef163127322ed046af93bb173ef75ed1e /drivers/scsi/lpfc/lpfc_els.c
parentdd6e1f71b785a6ac2511e2ddb86315f292873e59 (diff)
downloadlinux-845d9e8df2fa879e6494e786f290e1fd5560ac8c.tar.xz
scsi: lpfc: Fix used-RPI accounting problem.
With 255 vports created a link trasition can casue a crash. When going through discovery after a link bounce the driver is using rpis before the cmd FCOE_POST_HDR_TEMPLATES completes. By doing that the next rpi bumps the rpi range out of the boundary. The fix it to increment the next_rpi only when the FCOE_POST_HDR_TEMPLATE succeeds. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_els.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_els.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index 67827e397431..3f9f6d5f8c69 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -8667,7 +8667,8 @@ lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
lpfc_do_scr_ns_plogi(phba, vport);
goto out;
fdisc_failed:
- if (vport->fc_vport->vport_state != FC_VPORT_NO_FABRIC_RSCS)
+ if (vport->fc_vport &&
+ (vport->fc_vport->vport_state != FC_VPORT_NO_FABRIC_RSCS))
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
/* Cancel discovery timer */
lpfc_can_disctmo(vport);