linux-kernel - [PATCH 4.4 081/115] iscsi-target: fix memory leak in lio_target_tiqn

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Message-Id: <20171218152858.086781872@linuxfoundation.org>
Date:   Mon, 18 Dec 2017 16:49:10 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, tangwenji <tang.wenji@....com.cn>,
        Nicholas Bellinger <nab@...ux-iscsi.org>,
        Sasha Levin <alexander.levin@...izon.com>
Subject: [PATCH 4.4 081/115] iscsi-target: fix memory leak in lio_target_tiqn_addtpg()

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

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

From: tangwenji <tang.wenji@....com.cn>


[ Upstream commit 12d5a43b2dffb6cd28062b4e19024f7982393288 ]

tpg must free when call core_tpg_register() return fail

Signed-off-by: tangwenji <tang.wenji@....com.cn>
Signed-off-by: Nicholas Bellinger <nab@...ux-iscsi.org>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.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
@@ -1210,7 +1210,7 @@ static struct se_portal_group *lio_targe
 
 	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)
@@ -1222,6 +1222,7 @@ 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;
 }