1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/macintosh/mac_hid.c b/drivers/macintosh/mac_hid.c
index 89302309da92..f972ff377b63 100644
--- a/drivers/macintosh/mac_hid.c
+++ b/drivers/macintosh/mac_hid.c
@@ -103,6 +103,9 @@ int mac_hid_mouse_emulate_buttons(int caller, unsigned int keycode, int down)
         return 0;
 }
 
+static struct lock_class_key emumousebtn_event_class;
+static struct lock_class_key emumousebtn_mutex_class;
+
 static int emumousebtn_input_register(void)
 {
         int ret;
@@ -111,6 +114,9 @@ static int emumousebtn_input_register(void)
         if (!emumousebtn)
                 return -ENOMEM;
 
+        lockdep_set_class(emumousebtn->event_lock, &emumousebtn_event_class);
+        lockdep_set_class(emumousebtn->mutex, &emumousebtn_mutex_class);
+
         emumousebtn->name = "Macintosh mouse button emulation";
         emumousebtn->id.bustype = BUS_ADB;
         emumousebtn->id.vendor = 0x0001;