diff --git a/drivers/rtc/rtc-hid-sensor-time.c b/drivers/rtc/rtc-hid-sensor-time.c
index 0438c9e..31c5728 100644
--- a/drivers/rtc/rtc-hid-sensor-time.c
+++ b/drivers/rtc/rtc-hid-sensor-time.c
@@ -225,6 +225,7 @@
 
 	platform_set_drvdata(pdev, time_state);
 
+	spin_lock_init(&time_state->lock_last_time);
 	init_completion(&time_state->comp_last_time);
 	time_state->common_attributes.hsdev = hsdev;
 	time_state->common_attributes.pdev = pdev;