From: Bart Van Assche <bart.vanassche@sandisk.com>
Date: Fri, 20 Mar 2015 05:25:16 +0000 (-0700)
Subject: tcm_qla2xxx: Fix incorrect use of __transport_register_session
X-Git-Tag: v3.16.35~2417
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=9b72dbfecfc229546b2e2edfc5e85c236f5da2b8;p=thirdparty%2Fkernel%2Fstable.git

tcm_qla2xxx: Fix incorrect use of __transport_register_session

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: Luis Henriques <luis.henriques@canonical.com>
---

diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
index 4747d2c660247..39c8902891340 100644
--- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c
+++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
@@ -1569,7 +1569,7 @@ 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;
 }