102 	struct ttyprintk_port *tpkp = tty->driver_data;  in tpk_close()  local
105 	spin_lock_irqsave(&tpkp->spinlock, flags);  in tpk_close()
108 	spin_unlock_irqrestore(&tpkp->spinlock, flags);  in tpk_close()
110 	tty_port_close(&tpkp->port, tty, filp);  in tpk_close()
119 	struct ttyprintk_port *tpkp = tty->driver_data;  in tpk_write()  local
125 	spin_lock_irqsave(&tpkp->spinlock, flags);  in tpk_write()
127 	spin_unlock_irqrestore(&tpkp->spinlock, flags);  in tpk_write()
146 	struct ttyprintk_port *tpkp = tty->driver_data;  in tpk_ioctl()  local
148 	if (!tpkp)  in tpk_ioctl()
166 	struct ttyprintk_port *tpkp = tty->driver_data;  in tpk_hangup()  local
168 	tty_port_hangup(&tpkp->port);  in tpk_hangup()