tag	line	file	source code
prev_port	1009	drivers/char/serial.c	info->prev_port = 0;
prev_port	1012	drivers/char/serial.c	info->next_port->prev_port = info;
prev_port	1055	drivers/char/serial.c	info->next_port->prev_port = info->prev_port;
prev_port	1056	drivers/char/serial.c	if (info->prev_port)
prev_port	1057	drivers/char/serial.c	info->prev_port->next_port = info->next_port;
prev_port	2666	drivers/char/serial.c	info->prev_port = 0;
prev_port	149	include/linux/serial.h	struct async_struct  *prev_port;