diff --git a/hw/e1000.c b/hw/e1000.c
index 95c471c..f123bda 100644
--- a/hw/e1000.c
+++ b/hw/e1000.c
@@ -1129,7 +1129,6 @@ static int pci_e1000_init(PCIDevice *pci_dev)
     qemu_format_nic_info_str(d->vc, macaddr);
 
     register_savevm(info_str, -1, 2, nic_save, nic_load, d);
-    d->dev.unregister = pci_e1000_uninit;
     qemu_register_reset(e1000_reset, d);
     e1000_reset(d);
     return 0;
@@ -1139,6 +1138,7 @@ static PCIDeviceInfo e1000_info = {
     .qdev.name = "e1000",
     .qdev.size = sizeof(E1000State),
     .init      = pci_e1000_init,
+    .exit      = pci_e1000_uninit,
 };
 
 static void e1000_register_devices(void)
diff --git a/hw/eepro100.c b/hw/eepro100.c
index d3b7c3d..ea9c338 100644
--- a/hw/eepro100.c
+++ b/hw/eepro100.c
@@ -1733,8 +1733,6 @@ static int nic_init(PCIDevice *pci_dev, uint32_t device)
 
     logout("\n");
 
-    s->dev.unregister = pci_nic_uninit;
-
     s->device = device;
 
     pci_reset(s);
@@ -1793,14 +1791,17 @@ static PCIDeviceInfo eepro100_info[] = {
         .qdev.name = "i82551",
         .qdev.size = sizeof(EEPRO100State),
         .init      = pci_i82551_init,
+        .exit      = pci_nic_uninit,
     },{
         .qdev.name = "i82557b",
         .qdev.size = sizeof(EEPRO100State),
         .init      = pci_i82557b_init,
+        .exit      = pci_nic_uninit,
     },{
         .qdev.name = "i82559er",
         .qdev.size = sizeof(EEPRO100State),
         .init      = pci_i82559er_init,
+        .exit      = pci_nic_uninit,
     },{
         /* end of list */
     }
diff --git a/hw/lsi53c895a.c b/hw/lsi53c895a.c
index 7c45391..a4d3a57 100644
--- a/hw/lsi53c895a.c
+++ b/hw/lsi53c895a.c
@@ -2174,7 +2174,6 @@ static int lsi_scsi_init(PCIDevice *dev)
     s->queue = qemu_malloc(sizeof(lsi_queue));
     s->queue_len = 1;
     s->active_commands = 0;
-    s->dev.unregister = lsi_scsi_uninit;
 
     lsi_soft_reset(s);
 
@@ -2189,6 +2188,7 @@ static PCIDeviceInfo lsi_info = {
     .qdev.alias = "lsi",
     .qdev.size  = sizeof(LSIState),
     .init       = lsi_scsi_init,
+    .exit       = lsi_scsi_uninit,
 };
 
 static void lsi53c895a_register_devices(void)
diff --git a/hw/pci.c b/hw/pci.c
index a6cd630..3221a6c 100644
--- a/hw/pci.c
+++ b/hw/pci.c
@@ -26,6 +26,7 @@
 #include "monitor.h"
 #include "net.h"
 #include "sysemu.h"
+#include "msix.h"
 
 //#define DEBUG_PCI
 #ifdef DEBUG_PCI
@@ -402,13 +403,15 @@ static void pci_unregister_io_regions(PCIDevice *pci_dev)
 static int pci_unregister_device(DeviceState *dev)
 {
     PCIDevice *pci_dev = DO_UPCAST(PCIDevice, qdev, dev);
+    PCIDeviceInfo *info = DO_UPCAST(PCIDeviceInfo, qdev, dev->info);
     int ret = 0;
 
-    if (pci_dev->unregister)
-        ret = pci_dev->unregister(pci_dev);
+    if (info->exit)
+        ret = info->exit(pci_dev);
     if (ret)
         return ret;
 
+    msix_uninit(pci_dev);
     pci_unregister_io_regions(pci_dev);
 
     qemu_free_irqs(pci_dev->irq);
diff --git a/hw/pci.h b/hw/pci.h
index 0ba7e6c..5e781d8 100644
--- a/hw/pci.h
+++ b/hw/pci.h
@@ -329,6 +329,7 @@ typedef int (*pci_qdev_initfn)(PCIDevice *dev);
 typedef struct {
     DeviceInfo qdev;
     pci_qdev_initfn init;
+    PCIUnregisterFunc *exit;
     PCIConfigReadFunc *config_read;
     PCIConfigWriteFunc *config_write;
 } PCIDeviceInfo;
diff --git a/hw/pcnet.c b/hw/pcnet.c
index ae98a20..ee0c98c 100644
--- a/hw/pcnet.c
+++ b/hw/pcnet.c
@@ -2039,8 +2039,6 @@ static int pci_pcnet_init(PCIDevice *pci_dev)
         sizeof(struct pcnet_RMD), sizeof(struct pcnet_TMD));
 #endif
 
-    pci_dev->unregister = pci_pcnet_uninit;
-
     pci_conf = pci_dev->config;
 
     pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_AMD);
@@ -2170,6 +2168,7 @@ static PCIDeviceInfo pcnet_info = {
     .qdev.name = "pcnet",
     .qdev.size = sizeof(PCIPCNetState),
     .init      = pci_pcnet_init,
+    .exit      = pci_pcnet_uninit,
 };
 
 static void pcnet_register_devices(void)
diff --git a/hw/rtl8139.c b/hw/rtl8139.c
index 83cb1ff..db9cb5a 100644
--- a/hw/rtl8139.c
+++ b/hw/rtl8139.c
@@ -3443,8 +3443,6 @@ static int pci_rtl8139_init(PCIDevice *dev)
     RTL8139State * s = DO_UPCAST(RTL8139State, dev, dev);
     uint8_t *pci_conf;
 
-    s->dev.unregister = pci_rtl8139_uninit;
-
     pci_conf = s->dev.config;
     pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_REALTEK);
     pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_REALTEK_8139);
@@ -3493,6 +3491,7 @@ static PCIDeviceInfo rtl8139_info = {
     .qdev.size  = sizeof(RTL8139State),
     .qdev.reset = rtl8139_reset,
     .init       = pci_rtl8139_init,
+    .exit       = pci_rtl8139_uninit,
 };
 
 static void rtl8139_register_devices(void)
diff --git a/hw/virtio-pci.c b/hw/virtio-pci.c
index bd5a7c4..c6fbaac 100644
--- a/hw/virtio-pci.c
+++ b/hw/virtio-pci.c
@@ -417,7 +417,6 @@ static void virtio_init_pci(VirtIOPCIProxy *proxy, VirtIODevice *vdev,
                          msix_bar_size(&proxy->pci_dev),
                          PCI_ADDRESS_SPACE_MEM,
                          msix_mmio_map);
-        proxy->pci_dev.unregister = msix_uninit;
     } else
         vdev->nvectors = 0;
 
