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

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

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

From: tangwenji <tang.wenji@xxxxxxxxxx>


[ Upstream commit 12d5a43b2dffb6cd28062b4e19024f7982393288 ]

tpg must free when call core_tpg_register() return fail

Signed-off-by: tangwenji <tang.wenji@xxxxxxxxxx>
Signed-off-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 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;
 }





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