iscsi-target: fix error path in iscsi_target_init_module()
iscsi-target: fix error path in iscsi_target_init_module()

In iscsi_target_init_module() unwind transport protocol registration in case
that iscsit_load_discovery_tpg() failed.

Signed-off-by: Lino Sanfilippo <ff19ebaea67c281c47b9efdbbdfaf0dd57d98f08@gmx.de>
Reviewed-by: Sagi Grimberg <380ce2a82d3d08e67ab163b51dc6d30288ad3f13@mellanox.com>
Signed-off-by: Nicholas Bellinger <978acd1567d5598152161fdf8bf3ca568f950c9b@linux-iscsi.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs