[PATCH 3.13.y-ckt 134/156] tcm_qla2xxx: Fix incorrect use of __transport_register_session

From: Kamal Mostafa
Date: Tue Apr 07 2015 - 19:00:00 EST

3.13.11-ckt19 -stable review patch. If anyone has any objections, please let me know.


From: Bart Van Assche <bart.vanassche@xxxxxxxxxxx>

commit 75c3d0bf9caebb502e96683b2bc37f9692437e68 upstream.

This patch fixes the incorrect use of __transport_register_session()
in tcm_qla2xxx_check_initiator_node_acl() code, that does not perform
explicit se_tpg->session_lock when accessing se_tpg->tpg_sess_list
to add new se_sess nodes.

Given that tcm_qla2xxx_check_initiator_node_acl() is not called with
qla_hw->hardware_lock held for all accesses of ->tpg_sess_list, the
code should be using transport_register_session() instead.

Signed-off-by: Bart Van Assche <bart.vanassche@xxxxxxxxxxx>
Cc: Giridhar Malavali <giridhar.malavali@xxxxxxxxxx>
Cc: Quinn Tran <quinn.tran@xxxxxxxxxx>
Signed-off-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx>
drivers/scsi/qla2xxx/tcm_qla2xxx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
index b93f24a..dcfad2e 100644
--- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c
+++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
@@ -1454,7 +1454,7 @@ static int tcm_qla2xxx_check_initiator_node_acl(
* Finally register the new FC Nexus with TCM
- __transport_register_session(se_nacl->se_tpg, se_nacl, se_sess, sess);
+ transport_register_session(se_nacl->se_tpg, se_nacl, se_sess, sess);

return 0;

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