tsch(schid, (struct irb *)__LC_IRB); return 0; 
tsch(ti.irq, (struct irb *)__LC_IRB); if (ti.irq == schid) return 0; 
__clear_subchannel_easy(unsigned int schid){	int retry;	if (csch(schid))		return -ENODEV;	for (retry=0;retry<20;retry++) {		struct tpi_info ti;		if (tpi(&ti)) {			tsch(schid, (struct irb *)__LC_IRB);			return 0;		}		udelay(100);	}	return -EBUSY;}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/4c24da79e29537f0e240a331220a1c46cb9bc085/cio.c/clean/drivers/s390/cio/cio.c