diff --git a/[refs] b/[refs]
index ee483c1f5017..840fe2356529 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: af8036dd749fbf4e732161ff0f3874759b73be40
+refs/heads/master: 29807d1e24b7cd696442d2f600057230f084b3c7
diff --git a/trunk/drivers/input/input-mt.c b/trunk/drivers/input/input-mt.c
index c0ec7d42c3be..475b9d424eed 100644
--- a/trunk/drivers/input/input-mt.c
+++ b/trunk/drivers/input/input-mt.c
@@ -247,7 +247,7 @@ void input_mt_sync_frame(struct input_dev *dev)
 
 	if (mt->flags & INPUT_MT_DROP_UNUSED) {
 		for (s = mt->slots; s != mt->slots + mt->num_slots; s++) {
-			if (s->frame == mt->frame)
+			if (input_mt_is_used(mt, s))
 				continue;
 			input_mt_slot(dev, s - mt->slots);
 			input_event(dev, EV_ABS, ABS_MT_TRACKING_ID, -1);
diff --git a/trunk/include/linux/input/mt.h b/trunk/include/linux/input/mt.h
index cc5cca774bab..2e86bd0bfba1 100644
--- a/trunk/include/linux/input/mt.h
+++ b/trunk/include/linux/input/mt.h
@@ -69,6 +69,12 @@ static inline bool input_mt_is_active(const struct input_mt_slot *slot)
 	return input_mt_get_value(slot, ABS_MT_TRACKING_ID) >= 0;
 }
 
+static inline bool input_mt_is_used(const struct input_mt *mt,
+				    const struct input_mt_slot *slot)
+{
+	return slot->frame == mt->frame;
+}
+
 int input_mt_init_slots(struct input_dev *dev, unsigned int num_slots,
 			unsigned int flags);
 void input_mt_destroy_slots(struct input_dev *dev);