389 	spinlock_t spin_mutex;	/* secures access to registers and tty */  member
1174 	spin_lock(&dc->spin_mutex);  in interrupt_handler()
1278 	spin_unlock(&dc->spin_mutex);  in interrupt_handler()
1290 	spin_unlock(&dc->spin_mutex);  in interrupt_handler()
1440 	spin_lock_init(&dc->spin_mutex);  in nozomi_card_init()
1623 	spin_lock_irqsave(&dc->spin_mutex, flags);  in ntty_activate()
1627 	spin_unlock_irqrestore(&dc->spin_mutex, flags);  in ntty_activate()
1645 	spin_lock_irqsave(&dc->spin_mutex, flags);  in ntty_shutdown()
1649 	spin_unlock_irqrestore(&dc->spin_mutex, flags);  in ntty_shutdown()
1691 	spin_lock_irqsave(&dc->spin_mutex, flags);  in ntty_write()
1704 	spin_unlock_irqrestore(&dc->spin_mutex, flags);  in ntty_write()
1755 	spin_lock_irqsave(&dc->spin_mutex, flags);  in ntty_tiocmset()
1765 	spin_unlock_irqrestore(&dc->spin_mutex, flags);  in ntty_tiocmset()
1840 	spin_lock_irqsave(&dc->spin_mutex, flags);  in ntty_unthrottle()
1844 	spin_unlock_irqrestore(&dc->spin_mutex, flags);  in ntty_unthrottle()
1857 	spin_lock_irqsave(&dc->spin_mutex, flags);  in ntty_throttle()
1859 	spin_unlock_irqrestore(&dc->spin_mutex, flags);  in ntty_throttle()