Index: head/sys/kern/kern_time.c
===================================================================
--- head/sys/kern/kern_time.c
+++ head/sys/kern/kern_time.c
@@ -120,9 +120,7 @@
 	struct timeval delta, tv1, tv2;
 	static struct timeval maxtime, laststep;
 	struct timespec ts;
-	int s;
 
-	s = splclock();
 	microtime(&tv1);
 	delta = *tv;
 	timevalsub(&delta, &tv1);
@@ -152,10 +150,8 @@
 				printf("Time adjustment clamped to -1 second\n");
 			}
 		} else {
-			if (tv1.tv_sec == laststep.tv_sec) {
-				splx(s);
+			if (tv1.tv_sec == laststep.tv_sec)
 				return (EPERM);
-			}
 			if (delta.tv_sec > 1) {
 				tv->tv_sec = tv1.tv_sec + 1;
 				printf("Time adjustment clamped to +1 second\n");
@@ -166,10 +162,8 @@
 
 	ts.tv_sec = tv->tv_sec;
 	ts.tv_nsec = tv->tv_usec * 1000;
-	mtx_lock(&Giant);
 	tc_setclock(&ts);
 	resettodr();
-	mtx_unlock(&Giant);
 	return (0);
 }