1 files changed, 1 insertions, 3 deletions

diff --git a/kernel/events/core.c b/kernel/events/core.c
index a25460559b4f..2d7363adf678 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -3629,6 +3629,7 @@ static unsigned int perf_poll(struct file *file, poll_table *wait)
         struct ring_buffer *rb;
         unsigned int events = POLL_HUP;
 
+        poll_wait(file, &event->waitq, wait);
         /*
          * Pin the event->rb by taking event->mmap_mutex; otherwise
          * perf_event_set_output() can swizzle our rb and make us miss wakeups.
@@ -3638,9 +3639,6 @@ static unsigned int perf_poll(struct file *file, poll_table *wait)
         if (rb)
                 events = atomic_xchg(&rb->poll, 0);
         mutex_unlock(&event->mmap_mutex);
-
-        poll_wait(file, &event->waitq, wait);
-
         return events;
 }