page_pools.epp_total_pages -= npages;
/* max pool index after the release */
- p_idx_max1 = page_pools.epp_total_pages == 0 ? 0 :
+ p_idx_max1 = page_pools.epp_total_pages == 0 ? -1 :
((page_pools.epp_total_pages - 1) / PAGES_PER_POOL);
p_idx = page_pools.epp_free_pages / PAGES_PER_POOL;