taglinefilesource code
busy_audio542drivers/cdrom/sbpcd.cstatic volatile u_char busy_audio=0; /* true semaphores would be safer */
busy_audio4148drivers/cdrom/sbpcd.cbusy_audio=1;
busy_audio4301drivers/cdrom/sbpcd.cbusy_audio=0;
busy_audio4391drivers/cdrom/sbpcd.cwhile (busy_audio) sbp_sleep(HZ); /* wait a bit */