1 files changed, 1 insertions, 1 deletions

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 7469c503580d..0fb330271271 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -208,7 +208,7 @@ int online_pages(unsigned long pfn, unsigned long nr_pages)
         /*
          * This doesn't need a lock to do pfn_to_page().
          * The section can't be removed here because of the
-         * memory_block->state_sem.
+         * memory_block->state_mutex.
          */
         zone = page_zone(pfn_to_page(pfn));
         pgdat_resize_lock(zone->zone_pgdat, &flags);