iscsi-target: fix memory leak in lio_target_tiqn_addtpg()

tpg must free when call core_tpg_register() return fail

Signed-off-by: tangwenji <tang.wenji@zte.com.cn>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>

diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c
index 0dd4c45f7575a2795f3987dd874ac4891d93184f..0ebc4818e132ade606a77e8e46b46e183e111ddd 100644 (file)
--- a/drivers/target/iscsi/iscsi_target_configfs.c
+++ b/drivers/target/iscsi/iscsi_target_configfs.c
@@ -1123,7 +1123,7 @@ static struct se_portal_group *lio_target_tiqn_addtpg(
 
        ret = core_tpg_register(wwn, &tpg->tpg_se_tpg, SCSI_PROTOCOL_ISCSI);
        if (ret < 0)
-               return NULL;
+               goto free_out;
 
        ret = iscsit_tpg_add_portal_group(tiqn, tpg);
        if (ret != 0)
@@ -1135,6 +1135,7 @@ static struct se_portal_group *lio_target_tiqn_addtpg(
        return &tpg->tpg_se_tpg;
 out:
        core_tpg_deregister(&tpg->tpg_se_tpg);
+free_out:
        kfree(tpg);
        return NULL;
 }