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-rw-r--r--hw/acpi/piix4.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c
index 6d023e595b..5860e8408b 100644
--- a/hw/acpi/piix4.c
+++ b/hw/acpi/piix4.c
@@ -619,7 +619,7 @@ static const Property piix4_pm_properties[] = {
                       not_migrate_acpi_index, false),
 };
 
-static void piix4_pm_class_init(ObjectClass *klass, void *data)
+static void piix4_pm_class_init(ObjectClass *klass, const void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);