diff --git a/hw/ide/sii3112.c b/hw/ide/sii3112.c
index e3896c65b4..743a50ed51 100644
--- a/hw/ide/sii3112.c
+++ b/hw/ide/sii3112.c
@@ -327,17 +327,6 @@ static void sii3112_pci_realize(PCIDevice *dev, Error **errp)
     qemu_register_reset(sii3112_reset, s);
 }
 
-static void sii3112_pci_exitfn(PCIDevice *dev)
-{
-    PCIIDEState *d = PCI_IDE(dev);
-    int i;
-
-    for (i = 0; i < 2; ++i) {
-        memory_region_del_subregion(&d->bmdma_bar, &d->bmdma[i].extra_io);
-        memory_region_del_subregion(&d->bmdma_bar, &d->bmdma[i].addr_ioport);
-    }
-}
-
 static void sii3112_pci_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
@@ -348,7 +337,6 @@ static void sii3112_pci_class_init(ObjectClass *klass, void *data)
     pd->class_id = PCI_CLASS_STORAGE_RAID;
     pd->revision = 1;
     pd->realize = sii3112_pci_realize;
-    pd->exit = sii3112_pci_exitfn;
     dc->desc = "SiI3112A SATA controller";
     set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
 }