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path: root/drivers/target/loopback
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Diffstat (limited to 'drivers/target/loopback')
-rw-r--r--drivers/target/loopback/tcm_loop.c12
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);