diff --git a/drivers/rtc/rtc-ds1685.c b/drivers/rtc/rtc-ds1685.c
index 2698d8f..b3ce3c6 100644
--- a/drivers/rtc/rtc-ds1685.c
+++ b/drivers/rtc/rtc-ds1685.c
@@ -2211,6 +2211,7 @@
 			   (ctrl4a | RTC_CTRL_4A_PAB));
 
 		/* Spin ... we do not switch back to bank0. */
+		while(1);
 		unreachable();
 	}
 }