1 files changed, 1 insertions, 1 deletions

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index ac2ffd5e02b9..9011997d8a5c 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -3777,7 +3777,7 @@ static int memcg_event_wake(wait_queue_entry_t *wait, unsigned mode,
         struct mem_cgroup_event *event =
                 container_of(wait, struct mem_cgroup_event, wait);
         struct mem_cgroup *memcg = event->memcg;
-        unsigned long flags = (unsigned long)key;
+        __poll_t flags = key_to_poll(key);
 
         if (flags & POLLHUP) {
                 /*