if (udev->descriptor.iManufacturer) 
if (udev->manufacturer) 
void usb_remove_sysfs_dev_files (struct usb_device *udev){	struct device *dev = &udev->dev;	usb_remove_ep_files(&udev->ep0);	sysfs_remove_group(&dev->kobj, &dev_attr_grp);	if (udev->descriptor.iManufacturer)		device_remove_file(dev, &dev_attr_manufacturer);	if (udev->descriptor.iProduct)		device_remove_file(dev, &dev_attr_product);	if (udev->descriptor.iSerialNumber)		device_remove_file(dev, &dev_attr_serial);	device_remove_file (dev, &dev_attr_configuration);}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/4f62efe67f077db17dad03a1d4c9665000a3eb45/sysfs.c/buggy/drivers/usb/core/sysfs.c