diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index c4230f44e1ea..c1863f2fd106 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -3025,10 +3025,12 @@ static int __do_adjtimex(struct tk_data *tkd, struct __kernel_timex *txc,
 		return ret;
 	add_device_randomness(txc, sizeof(*txc));
 
-	if (!aux_clock)
+	if (!aux_clock) {
 		ktime_get_real_ts64(&ts);
-	else
-		tk_get_aux_ts64(tkd->timekeeper.id, &ts);
+	} else {
+		if (!tk_get_aux_ts64(tkd->timekeeper.id, &ts))
+			return -ENODEV;
+	}
 
 	add_device_randomness(&ts, sizeof(ts));