if (co->index < 0 || co->index >= MAX_NR_HVC_CONSOLES) return -ENODEV;  if (vtermnos[co->index] == -1) return -ENODEV;  
static int __init hvc_console_setup(struct console *co, char *options){	return 0;}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/7805b1b29ffdd252dfef36aa28d7bda70cd586d3/hvc_console.c/clean/drivers/char/hvc_console.c