diff options
| author | James Smart <james.smart@avagotech.com> | 2015-05-21 13:55:26 -0400 |
|---|---|---|
| committer | James Bottomley <JBottomley@Odin.com> | 2015-06-05 22:39:07 -0700 |
| commit | cc82355a6e6cb606125b849db7f9e9a10408d407 (patch) | |
| tree | ab779d539c26b49ae7851542ec29adafdd31701d | |
| parent | ed243d37be56be3dff4bf51a6f870d36843ed12f (diff) | |
lpfc: Fix crash in vport_delete.
We inadvertantly took the path to recreate the vport while in a
driver teardown path
Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com>
Signed-off-by: James Smart <james.smart@avagotech.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_init.c | 8 | ||||
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_nportdisc.c | 8 | ||||
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_vport.c | 9 |
3 files changed, 19 insertions, 6 deletions
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 6ab831243d43..14424e66b561 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -4483,7 +4483,13 @@ lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, lpfc_destroy_vport_work_array(phba, vports); } - if (active_vlink_present) { + /* + * Don't re-instantiate if vport is marked for deletion. + * If we are here first then vport_delete is going to wait + * for discovery to complete. + */ + if (!(vport->load_flag & FC_UNLOADING) && + active_vlink_present) { /* * If there are other active VLinks present, * re-instantiate the Vlink using FDISC. diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c index 4cb9882af157..09de6408c457 100644 --- a/drivers/scsi/lpfc/lpfc_nportdisc.c +++ b/drivers/scsi/lpfc/lpfc_nportdisc.c @@ -661,7 +661,13 @@ lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, lpfc_destroy_vport_work_array(phba, vports); } - if (active_vlink_present) { + /* + * Don't re-instantiate if vport is marked for deletion. + * If we are here first then vport_delete is going to wait + * for discovery to complete. + */ + if (!(vport->load_flag & FC_UNLOADING) && + active_vlink_present) { /* * If there are other active VLinks present, * re-instantiate the Vlink using FDISC. diff --git a/drivers/scsi/lpfc/lpfc_vport.c b/drivers/scsi/lpfc/lpfc_vport.c index a87ee33f4f2a..769012663a8f 100644 --- a/drivers/scsi/lpfc/lpfc_vport.c +++ b/drivers/scsi/lpfc/lpfc_vport.c @@ -567,8 +567,8 @@ int lpfc_vport_delete(struct fc_vport *fc_vport) { struct lpfc_nodelist *ndlp = NULL; - struct Scsi_Host *shost = (struct Scsi_Host *) fc_vport->shost; struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; + struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_hba *phba = vport->phba; long timeout; bool ns_ndlp_referenced = false; @@ -645,8 +645,8 @@ lpfc_vport_delete(struct fc_vport *fc_vport) } /* Remove FC host and then SCSI host with the vport */ - fc_remove_host(lpfc_shost_from_vport(vport)); - scsi_remove_host(lpfc_shost_from_vport(vport)); + fc_remove_host(shost); + scsi_remove_host(shost); ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); @@ -772,7 +772,8 @@ skip_logo: * Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi) * does the scsi_host_put() to release the vport. */ - if (lpfc_mbx_unreg_vpi(vport)) + if (!(vport->vpi_state & LPFC_VPI_REGISTERED) || + lpfc_mbx_unreg_vpi(vport)) scsi_host_put(shost); } else scsi_host_put(shost); |