target: Convert transport_deregister_session_configfs nacl_sess_lock to save irq state
This patch converts transport_deregister_session_configfs() to save/restore spinlock IRQ state for struct se_node_acl->nacl_sess_lock access as tcm_qla2xxx logic expects to call transport_deregister_session_configfs() code with irq save already held for struct qla_hw_data. Reported-by: NRoland Dreier <roland@purestorage.com> Signed-off-by: NNicholas Bellinger <nab@linux-iscsi.org>
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