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scsi: qla2xxx: Cleanup NPIV host in target mode during config teardown 

When we tear down the NPIV host configuration in target mode, the
qla_tgt struct was left dangling on the global list. This patch cleans
up link list and frees memory.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Quinn Tran 2017-08-23 15:05:18 -07:00 committed by Martin K. Petersen
parent 1f4c7c380b
commit bdbe24de28
2 changed files with 8 additions and 4 deletions
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11
drivers/scsi/qla2xxx/qla_target.c
View File

@ -1528,6 +1528,7 @@ static void qlt_release(struct qla_tgt *tgt)
u64 key = 0;
u16 i;
struct qla_qpair_hint *h;
struct qla_hw_data *ha = vha->hw;
if ((vha->vha_tgt.qla_tgt != NULL) && !tgt->tgt_stop &&
!tgt->tgt_stopped)
@ -1548,12 +1549,18 @@ static void qlt_release(struct qla_tgt *tgt)
}
}
kfree(tgt->qphints);
mutex_lock(&qla_tgt_mutex);
list_del(&vha->vha_tgt.qla_tgt->tgt_list_entry);
mutex_unlock(&qla_tgt_mutex);
btree_for_each_safe64(&tgt->lun_qpair_map, key, node)
btree_remove64(&tgt->lun_qpair_map, key);
btree_destroy64(&tgt->lun_qpair_map);
if (ha->tgt.tgt_ops && ha->tgt.tgt_ops->remove_target)
ha->tgt.tgt_ops->remove_target(vha);
vha->vha_tgt.qla_tgt = NULL;
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00d,
@ -6175,10 +6182,6 @@ int qlt_remove_target(struct qla_hw_data *ha, struct scsi_qla_host *vha)
/* free left over qfull cmds */
qlt_init_term_exchange(vha);
mutex_lock(&qla_tgt_mutex);
list_del(&vha->vha_tgt.qla_tgt->tgt_list_entry);
mutex_unlock(&qla_tgt_mutex);
ql_dbg(ql_dbg_tgt, vha, 0xe03c, "Unregistering target for host %ld(%p)",
vha->host_no, ha);
qlt_release(vha->vha_tgt.qla_tgt);

1
drivers/scsi/qla2xxx/qla_target.h
View File

@ -705,6 +705,7 @@ struct qla_tgt_func_tmpl {
int (*get_dif_tags)(struct qla_tgt_cmd *cmd, uint16_t *pfw_prot_opts);
int (*chk_dif_tags)(uint32_t tag);
void (*add_target)(struct scsi_qla_host *);
void (*remove_target)(struct scsi_qla_host *);
};
int qla2x00_wait_for_hba_online(struct scsi_qla_host *);