lookup_bdev
error = lookup_bdev(path, &dev);
EXPORT_SYMBOL(lookup_bdev);
if (lookup_bdev(strim(path), &dev) == 0 &&
r = lookup_bdev(path, &dev);
ret = lookup_bdev(fc->source, &dev);
ret = lookup_bdev(device_path, &device->devt);
ret = lookup_bdev(vol->name, &devt);
ret = lookup_bdev(device_path, &device->devt);
ret = lookup_bdev(path, &path_devt);
err = lookup_bdev(fc->source, &dev);
error = lookup_bdev(tmp->name, &dev);
error = lookup_bdev(fc->source, &dev);
int lookup_bdev(const char *pathname, dev_t *dev);
error = lookup_bdev(name, &dev);