diff options
Diffstat (limited to 'common/mem_regions.c')
| -rw-r--r-- | common/mem_regions.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/common/mem_regions.c b/common/mem_regions.c index 8d066e7..eee9230 100644 --- a/common/mem_regions.c +++ b/common/mem_regions.c @@ -185,13 +185,15 @@ stat_t destroy_region(struct mem_region_root *r) * */ struct mem_region *find_used_region(struct mem_region_root *r, vm_t start) { + /** @todo check that start is aligned to page boundary? */ + vm_t ref = __page(start); struct sp_node *n = sp_root(&r->used_regions); while (n) { struct mem_region *t = mem_container(n); - if (start == t->start) + if (ref == t->start) return t; - if (start < t->start) + if (ref < t->start) n = sp_left(n); else n = sp_right(n); @@ -500,7 +502,7 @@ stat_t free_region(struct mem_region_root *r, vm_t start) if (!is_aligned(start, BASE_PAGE_SIZE)) return ERR_ALIGN; - struct mem_region *m = find_used_region(r, __page(start)); + struct mem_region *m = find_used_region(r, start); if (!m) return ERR_NF; |