Index: sys/kern/kern_cpu.c
===================================================================
--- sys/kern/kern_cpu.c
+++ sys/kern/kern_cpu.c
@@ -957,7 +957,7 @@
 	 * CPUs have equal levels), we call cpufreq_set() on all CPUs.
 	 * This is needed for some MP systems.
 	 */
-	error = devclass_get_devices(cpufreq_dc, &devs, &devcount);
+	error = devclass_get_devices(devclass_find("cpufreq"), &devs, &devcount);
 	if (error)
 		goto out;
 	for (n = 0; n < devcount; n++) {