diff --git a/drivers/hwmon/asus_atk0110.c b/drivers/hwmon/asus_atk0110.c
index 0897edef25745..bff0103610c17 100644
--- a/drivers/hwmon/asus_atk0110.c
+++ b/drivers/hwmon/asus_atk0110.c
@@ -348,6 +348,7 @@ static int validate_hwmon_pack(struct atk_data *data, union acpi_object *obj)
 	return 0;
 }
 
+#ifdef DEBUG
 static char const *atk_sensor_type(union acpi_object *flags)
 {
 	u64 type = flags->integer.value & ATK_TYPE_MASK;
@@ -370,6 +371,7 @@ static char const *atk_sensor_type(union acpi_object *flags)
 
 	return what;
 }
+#endif
 
 static void atk_print_sensor(struct atk_data *data, union acpi_object *obj)
 {
diff --git a/drivers/hwmon/w83781d.c b/drivers/hwmon/w83781d.c
index dbfb30c588d8c..0bdab959b7369 100644
--- a/drivers/hwmon/w83781d.c
+++ b/drivers/hwmon/w83781d.c
@@ -1462,7 +1462,8 @@ static struct w83781d_data *w83781d_update_device(struct device *dev)
 				data->pwm[i] =
 				    w83781d_read_value(data,
 						       W83781D_REG_PWM[i]);
-				if ((data->type != w83782d || !client->driver)
+				/* Only W83782D on SMBus has PWM3 and PWM4 */
+				if ((data->type != w83782d || !client)
 				    && i == 1)
 					break;
 			}