[patch] target/iscsi: double free in lio_target_tiqn_addtpg()

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This iscsit_tpg_add_portal_group() function is only called from
lio_target_tiqn_addtpg().  Both functions free the "tpg" pointer on
error so it's a double free bug.  The memory is allocated in the caller
so it should be freed in the caller and not here.

Fixes: e48354ce078c ("iscsi-target: Add iSCSI fabric support for target v4.1")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

diff --git a/drivers/target/iscsi/iscsi_target_tpg.c b/drivers/target/iscsi/iscsi_target_tpg.c
index 0814e5894a96..205a509b0dfb 100644
--- a/drivers/target/iscsi/iscsi_target_tpg.c
+++ b/drivers/target/iscsi/iscsi_target_tpg.c
@@ -260,7 +260,6 @@ int iscsit_tpg_add_portal_group(struct iscsi_tiqn *tiqn, struct iscsi_portal_gro
 		iscsi_release_param_list(tpg->param_list);
 		tpg->param_list = NULL;
 	}
-	kfree(tpg);
 	return -ENOMEM;
 }
 
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