target: fix possible memory leak in core_tpg_register()

'se_tpg->tpg_lun_list' is malloced in core_tpg_register() and should be freed
before leaving from the error handling cases, otherwise it will cause memory
leak.
'se_tpg' is malloced out of this function, and will be freed if we return error, so
remove free for 'se_tpg'.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>

diff --git a/drivers/target/target_core_tpg.c b/drivers/target/target_core_tpg.c
index 9169d6a..aac9d27 100644 (file)
--- a/drivers/target/target_core_tpg.c
+++ b/drivers/target/target_core_tpg.c
@@ -711,7 +711,8 @@ int core_tpg_register(
 
        if (se_tpg->se_tpg_type == TRANSPORT_TPG_TYPE_NORMAL) {
                if (core_tpg_setup_virtual_lun0(se_tpg) < 0) {
-                       kfree(se_tpg);
+                       array_free(se_tpg->tpg_lun_list,
+                                  TRANSPORT_MAX_LUNS_PER_TPG);
                        return -ENOMEM;
                }
        }