1 files changed, 2 insertions, 5 deletions

diff --git a/mm/sparse.c b/mm/sparse.c
index c5e89eb9ac8f..100040c0dfb6 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -87,11 +87,8 @@ int __section_nr(struct mem_section* ms)
         unsigned long root_nr;
         struct mem_section* root;
 
-        for (root_nr = 0;
-             root_nr < NR_MEM_SECTIONS;
-             root_nr += SECTIONS_PER_ROOT) {
-                root = __nr_to_section(root_nr);
-
+        for (root_nr = 0; root_nr < NR_SECTION_ROOTS; root_nr++) {
+                root = __nr_to_section(root_nr * SECTIONS_PER_ROOT);
                 if (!root)
                         continue;