509 	spin_lock_irqsave(&p->sighand->siglock, flags);  in proc_clear_tty()
512 	spin_unlock_irqrestore(&p->sighand->siglock, flags);  in proc_clear_tty()
552 	spin_lock_irq(&current->sighand->siglock);  in proc_set_tty()
554 	spin_unlock_irq(&current->sighand->siglock);  in proc_set_tty()
562 	spin_lock_irqsave(&current->sighand->siglock, flags);  in get_current_tty()
564 	spin_unlock_irqrestore(&current->sighand->siglock, flags);  in get_current_tty()
624 			spin_lock_irq(&p->sighand->siglock);  in tty_signal_session_leader()
632 				spin_unlock_irq(&p->sighand->siglock);  in tty_signal_session_leader()
643 			spin_unlock_irq(&p->sighand->siglock);  in tty_signal_session_leader()
906 		spin_lock_irq(&current->sighand->siglock);  in disassociate_ctty()
909 		spin_unlock_irq(&current->sighand->siglock);  in disassociate_ctty()
918 	spin_lock_irq(&current->sighand->siglock);  in disassociate_ctty()
935 	spin_unlock_irq(&current->sighand->siglock);  in disassociate_ctty()
2140 	spin_lock_irq(&current->sighand->siglock);  in tty_open()
2162 	spin_unlock_irq(&current->sighand->siglock);  in tty_open()