if (!mmapped) 
if (!mmapped) { ioport_unmap(base_iomem); 
static void i2c_pcfisa_exit(void){	i2c_pcf_del_bus(&pcf_isa_ops);	if (irq > 0) {		disable_irq(irq);		free_irq(irq, NULL);	}	if (!mmapped)		release_region(base , 2);}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/3634ff6a32e90d9db0ec19297e80059143c1aa7f/i2c-elektor.c/clean/drivers/i2c/busses/i2c-elektor.c