1 files changed, 1 insertions, 0 deletions

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 0082d699be94..b236069ff0d8 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -874,6 +874,7 @@ int __ref online_pages(unsigned long pfn, unsigned long nr_pages, int online_typ
          */
         mem = find_memory_block(__pfn_to_section(pfn));
         nid = mem->nid;
+        put_device(&mem->dev);
 
         /* associate pfn range with the zone */
         zone = move_pfn_range(online_type, nid, pfn, nr_pages);