diff --git a/drivers/input/input.c b/drivers/input/input.c
index 29ca0bb..087255a 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -667,6 +667,7 @@
  */
 static void input_dev_release_keys(struct input_dev *dev)
 {
+	bool need_sync = false;
 	int code;
 
 	if (is_event_supported(EV_KEY, dev->evbit, EV_MAX)) {
@@ -674,9 +675,11 @@
 			if (is_event_supported(code, dev->keybit, KEY_MAX) &&
 			    __test_and_clear_bit(code, dev->key)) {
 				input_pass_event(dev, EV_KEY, code, 0);
+				need_sync = true;
 			}
 		}
-		input_pass_event(dev, EV_SYN, SYN_REPORT, 1);
+		if (need_sync)
+			input_pass_event(dev, EV_SYN, SYN_REPORT, 1);
 	}
 }