rp2_minor_lock    211 drivers/tty/serial/rp2.c static DEFINE_SPINLOCK(rp2_minor_lock);
rp2_minor_lock    218 drivers/tty/serial/rp2.c 	spin_lock(&rp2_minor_lock);
rp2_minor_lock    224 drivers/tty/serial/rp2.c 	spin_unlock(&rp2_minor_lock);