[PATCH 3.18 48/69] iscsi-target: fix memory leak in lio_target_tiqn_addtpg()

[Greg Kroah-Hartman]

3.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: tangwenji <tang.we...@zte.com.cn>


[ Upstream commit 12d5a43b2dffb6cd28062b4e19024f7982393288 ]

tpg must free when call core_tpg_register() return fail

Signed-off-by: tangwenji <tang.we...@zte.com.cn>
Signed-off-by: Nicholas Bellinger <n...@linux-iscsi.org>
Signed-off-by: Sasha Levin <alexander.le...@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/target/iscsi/iscsi_target_configfs.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/target/iscsi/iscsi_target_configfs.c
+++ b/drivers/target/iscsi/iscsi_target_configfs.c
@@ -1458,7 +1458,7 @@ static struct se_portal_group *lio_targe
                        wwn, &tpg->tpg_se_tpg, tpg,
                        TRANSPORT_TPG_TYPE_NORMAL);
        if (ret < 0)
-               return NULL;
+               goto free_out;
 
        ret = iscsit_tpg_add_portal_group(tiqn, tpg);
        if (ret != 0)
@@ -1470,6 +1470,7 @@ static struct se_portal_group *lio_targe
        return &tpg->tpg_se_tpg;
 out:
        core_tpg_deregister(&tpg->tpg_se_tpg);
+free_out:
        kfree(tpg);
        return NULL;
 }