ACPI: Remove unnecessary from/to-void* and to-void casts in drivers/acpi

Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/i2c_ec.c b/drivers/acpi/i2c_ec.c
index 6342e61..82e3e64 100644
--- a/drivers/acpi/i2c_ec.c
+++ b/drivers/acpi/i2c_ec.c
@@ -393,7 +393,7 @@
 
 struct acpi_ec_hc *acpi_get_ec_hc(struct acpi_device *device)
 {
-	return ((struct acpi_ec_hc *)acpi_driver_data(device->parent));
+	return acpi_driver_data(device->parent);
 }
 
 EXPORT_SYMBOL(acpi_get_ec_hc);