extern spinlock_t i8253_lock; 
static unsigned int get_time_pit(void){        extern spinlock_t i8253_lock;        unsigned long flags;        unsigned int count;        spin_lock_irqsave(&i8253_lock, flags);        outb_p(0x00, 0x43);        count = inb_p(0x40);        count |= inb_p(0x40) << 8;        spin_unlock_irqrestore(&i8253_lock, flags);        return count;}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/306e440daf5f40b195afd83d05dee89fa63189e7/analog.c/clean/drivers/input/joystick/analog.c