At the beginning move_later is set to -1, but it is set to different
value only if expression !move_later is true.
/* skip to be delayed devices, and move the to
* the point where the prefix changes. We can
* only move one item at a time. */
/* skip to be delayed devices, and move the to
* the point where the prefix changes. We can
* only move one item at a time. */
+ if (move_later == -1) {
move_later_prefix = devices_delay_later(udev_enumerate->udev, entry->syspath);
if (move_later_prefix > 0) {
move_later_prefix = devices_delay_later(udev_enumerate->udev, entry->syspath);
if (move_later_prefix > 0) {