Function IORegistryIteratorExitEntry 

pub unsafe extern "C-unwind" fn IORegistryIteratorExitEntry(
    iterator: io_iterator_t,
) -> kern_return_t

Available on crate feature libc only.

Exits a level of recursion, restoring the current entry.

This method undoes an IORegistryIteratorEnterEntry, restoring the current entry. If there are no more levels of recursion to exit false is returned, otherwise true is returned.

Returns: kIOReturnSuccess if a level of recursion was undone, kIOReturnNoDevice if no recursive levels are left in the iteration.