return 0; 
return -EIO; 
sysdev_show(struct kobject * kobj, struct attribute * attr, char * buffer){	struct sys_device * sysdev = to_sysdev(kobj);	struct sysdev_attribute * sysdev_attr = to_sysdev_attr(attr);	if (sysdev_attr->show)		return sysdev_attr->show(sysdev, buffer);	return 0;}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/4a0c20bf8c0fe2116f8fd7d3da6122bf8a01f026/sys.c/buggy/drivers/base/sys.c