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iscsi-target: Fix panic when adding second TCP connection to iSCSI session

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commit 8abc718de6 upstream.

In MC/S scenario, the conn->sess has been set NULL in
iscsi_login_non_zero_tsih_s1 when the second connection comes here,
then kernel panic.

The conn->sess will be assigned in iscsi_login_non_zero_tsih_s2. So
we should check whether it's NULL before calling.

Signed-off-by: Feng Li <lifeng1519@gmail.com>
Tested-by: Sumit Rai <sumit.rai@calsoftinc.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Feng Li
2016-07-12 06:15:44 +08:00
committed by popcornmix
parent acce88826b
commit c20fc2b06f
1 changed files with 3 additions and 2 deletions
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1
drivers/target/iscsi/iscsi_target_login.c
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@@ -1357,6 +1357,7 @@ static int __iscsi_target_login_thread(struct iscsi_np *np)
} }
login->zero_tsih = zero_tsih; login->zero_tsih = zero_tsih;
if (conn->sess)
conn->sess->se_sess->sup_prot_ops = conn->sess->se_sess->sup_prot_ops =
conn->conn_transport->iscsit_get_sup_prot_ops(conn); conn->conn_transport->iscsit_get_sup_prot_ops(conn);