diff options
| -rw-r--r-- | drivers/target/loopback/tcm_loop.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c index 5b870c316b9..b15d8cbf630 100644 --- a/drivers/target/loopback/tcm_loop.c +++ b/drivers/target/loopback/tcm_loop.c @@ -290,6 +290,15 @@ static int tcm_loop_queuecommand( */ tl_hba = *(struct tcm_loop_hba **)shost_priv(sc->device->host); tl_tpg = &tl_hba->tl_hba_tpgs[sc->device->id]; + /* + * Ensure that this tl_tpg reference from the incoming sc->device->id + * has already been configured via tcm_loop_make_naa_tpg(). + */ + if (!tl_tpg->tl_hba) { + set_host_byte(sc, DID_NO_CONNECT); + sc->scsi_done(sc); + return 0; + } se_tpg = &tl_tpg->tl_se_tpg; /* * Determine the SAM Task Attribute and allocate tl_cmd and @@ -1245,6 +1254,9 @@ void tcm_loop_drop_naa_tpg( */ core_tpg_deregister(se_tpg); + tl_tpg->tl_hba = NULL; + tl_tpg->tl_tpgt = 0; + pr_debug("TCM_Loop_ConfigFS: Deallocated Emulated %s" " Target Port %s,t,0x%04x\n", tcm_loop_dump_proto_id(tl_hba), config_item_name(&wwn->wwn_group.cg_item), tpgt); |