351 	spinlock_t spin_mutex;	/* secures access to registers and tty */  member
1117 	spin_lock(&dc->spin_mutex);  in interrupt_handler()
1221 	spin_unlock(&dc->spin_mutex);  in interrupt_handler()
1229 	spin_unlock(&dc->spin_mutex);  in interrupt_handler()
1369 	spin_lock_init(&dc->spin_mutex);  in nozomi_card_init()
1555 	spin_lock_irqsave(&dc->spin_mutex, flags);  in ntty_activate()
1559 	spin_unlock_irqrestore(&dc->spin_mutex, flags);  in ntty_activate()
1577 	spin_lock_irqsave(&dc->spin_mutex, flags);  in ntty_shutdown()
1581 	spin_unlock_irqrestore(&dc->spin_mutex, flags);  in ntty_shutdown()
1615 	spin_lock_irqsave(&dc->spin_mutex, flags);  in ntty_write()
1628 	spin_unlock_irqrestore(&dc->spin_mutex, flags);  in ntty_write()
1678 	spin_lock_irqsave(&dc->spin_mutex, flags);  in ntty_tiocmset()
1688 	spin_unlock_irqrestore(&dc->spin_mutex, flags);  in ntty_tiocmset()
1760 	spin_lock_irqsave(&dc->spin_mutex, flags);  in ntty_unthrottle()
1764 	spin_unlock_irqrestore(&dc->spin_mutex, flags);  in ntty_unthrottle()
1776 	spin_lock_irqsave(&dc->spin_mutex, flags);  in ntty_throttle()
1778 	spin_unlock_irqrestore(&dc->spin_mutex, flags);  in ntty_throttle()