diff --git a/sys/arch/arm/nvidia/tegra124_cpu.c b/sys/arch/arm/nvidia/tegra124_cpu.c
index ffc2ff2ec10d..c4586b4924b3 100644
--- a/sys/arch/arm/nvidia/tegra124_cpu.c
+++ b/sys/arch/arm/nvidia/tegra124_cpu.c
@@ -140,9 +140,14 @@ tegra124_cpu_attach(device_t parent, device_t self, void *aux)
 	config_finalize_register(self, tegra124_cpu_init_cpufreq);
 }
 
+static in tegra124_cpu_init_done = false
+
 static int
 tegra124_cpu_init_cpufreq(device_t dev)
 {
+	if (tegra124_cpu_init_done)
+		return 0;
+
 	tegra124_speedo_init();
 
 	int cpu_node = OF_finddevice("/cpus/cpu@0");
@@ -162,6 +167,8 @@ tegra124_cpu_init_cpufreq(device_t dev)
 
 	tegra_cpufreq_register(&tegra124_cpufreq_func);
 
+	tegra124_cpu_init_done = true;
+
 	return 0;
 }
 
diff --git a/sys/dev/ata/ata_raid.c b/sys/dev/ata/ata_raid.c
index c699ea55286d..6aacbcbddb52 100644
--- a/sys/dev/ata/ata_raid.c
+++ b/sys/dev/ata/ata_raid.c
@@ -176,7 +176,7 @@ ata_raid_finalize(device_t self)
 		    ataraid_cd.cd_name);
 
  out:
-	return (1);
+	return 0;
 }
 
 /*
diff --git a/sys/dev/raidframe/rf_netbsdkintf.c b/sys/dev/raidframe/rf_netbsdkintf.c
index 68af9a2999a8..c5787f5dbdd2 100644
--- a/sys/dev/raidframe/rf_netbsdkintf.c
+++ b/sys/dev/raidframe/rf_netbsdkintf.c
@@ -404,7 +404,7 @@ rf_autoconfig(device_t self)
 	RF_ConfigSet_t *config_sets;
 
 	if (!raidautoconfig || raidautoconfigdone == true)
-		return (0);
+		return 0;
 
 	/* XXX This code can only be run once. */
 	raidautoconfigdone = true;
@@ -432,7 +432,7 @@ rf_autoconfig(device_t self)
 	 */
 	rf_buildroothack(config_sets);
 
-	return 1;
+	return 0;
 }
 
 int
diff --git a/sys/dev/sbus/dbri.c b/sys/dev/sbus/dbri.c
index 9e131d6e2456..a16c128b62ff 100644
--- a/sys/dev/sbus/dbri.c
+++ b/sys/dev/sbus/dbri.c
@@ -372,7 +372,7 @@ dbri_attach_sbus(device_t parent, device_t self, void *aux)
 	sc->sc_playing = 0;
 	sc->sc_recording = 0;
 	sc->sc_init_done = 0;
-	config_finalize_register(self, &dbri_config_interrupts);
+	config_finalize_register(self, dbri_config_interrupts);
 
 	return;
 }