1 files changed, 1 insertions, 1 deletions

diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 8f78073d7caa..0c621604baa1 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -397,7 +397,7 @@ struct cftype {
          * This callback must be implemented, if you want provide
          * notification functionality.
          */
-        int (*unregister_event)(struct cgroup *cgrp, struct cftype *cft,
+        void (*unregister_event)(struct cgroup *cgrp, struct cftype *cft,
                         struct eventfd_ctx *eventfd);
 };