| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.19 26/75] tcm_qla2xxx: Fix incorrect use of __transport_register_session | Date | Fri, 10 Apr 2015 15:18:52 +0200 |
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3.19-stable review patch. If anyone has any objections, please let me know.
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From: Bart Van Assche <bart.vanassche@sandisk.com>
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@sandisk.com> Cc: Giridhar Malavali <giridhar.malavali@qlogic.com> Cc: Quinn Tran <quinn.tran@qlogic.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/scsi/qla2xxx/tcm_qla2xxx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c +++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c @@ -1598,7 +1598,7 @@ static int tcm_qla2xxx_check_initiator_n /* * 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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