From f90c2bcdbc69e41e575f868b984c3e2de8f51bac Mon Sep 17 00:00:00 2001
From: Alex Williamson <alex.williamson@redhat.com>
Date: Tue, 3 Jul 2012 22:39:27 -0600
Subject: pci: convert PCIUnregisterFunc to void

Not a single driver has any possibility of failure on their
exit function, let's keep it that way.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 hw/ac97.c               |  3 +--
 hw/e1000.c              |  3 +--
 hw/eepro100.c           |  3 +--
 hw/es1370.c             |  3 +--
 hw/ide/cmd646.c         |  4 +---
 hw/ide/ich.c            |  4 +---
 hw/ide/piix.c           |  4 +---
 hw/ide/via.c            |  4 +---
 hw/intel-hda.c          |  3 +--
 hw/ioh3420.c            |  8 +++-----
 hw/ivshmem.c            |  4 +---
 hw/lsi53c895a.c         |  4 +---
 hw/ne2000.c             |  3 +--
 hw/pci.c                |  8 +++-----
 hw/pci.h                |  2 +-
 hw/pci_bridge.c         |  3 +--
 hw/pci_bridge.h         |  2 +-
 hw/pci_bridge_dev.c     | 13 +++++--------
 hw/pcnet-pci.c          |  3 +--
 hw/rtl8139.c            |  3 +--
 hw/usb/hcd-uhci.c       |  3 +--
 hw/virtio-pci.c         | 23 +++++++++++------------
 hw/wdt_i6300esb.c       |  4 +---
 hw/xio3130_downstream.c |  8 +++-----
 hw/xio3130_upstream.c   |  8 +++-----
 25 files changed, 47 insertions(+), 83 deletions(-)

diff --git a/hw/ac97.c b/hw/ac97.c
index e791b9d3e6..0f561fa5c1 100644
--- a/hw/ac97.c
+++ b/hw/ac97.c
@@ -1319,13 +1319,12 @@ static int ac97_initfn (PCIDevice *dev)
     return 0;
 }
 
-static int ac97_exitfn (PCIDevice *dev)
+static void ac97_exitfn (PCIDevice *dev)
 {
     AC97LinkState *s = DO_UPCAST (AC97LinkState, dev, dev);
 
     memory_region_destroy (&s->io_nam);
     memory_region_destroy (&s->io_nabm);
-    return 0;
 }
 
 int ac97_init (PCIBus *bus)
diff --git a/hw/e1000.c b/hw/e1000.c
index 4573f1301e..6c5bc44e8c 100644
--- a/hw/e1000.c
+++ b/hw/e1000.c
@@ -1192,7 +1192,7 @@ e1000_cleanup(VLANClientState *nc)
     s->nic = NULL;
 }
 
-static int
+static void
 pci_e1000_uninit(PCIDevice *dev)
 {
     E1000State *d = DO_UPCAST(E1000State, dev, dev);
@@ -1202,7 +1202,6 @@ pci_e1000_uninit(PCIDevice *dev)
     memory_region_destroy(&d->mmio);
     memory_region_destroy(&d->io);
     qemu_del_vlan_client(&d->nic->nc);
-    return 0;
 }
 
 static NetClientInfo net_e1000_info = {
diff --git a/hw/eepro100.c b/hw/eepro100.c
index 6279ae36ec..9745ad592e 100644
--- a/hw/eepro100.c
+++ b/hw/eepro100.c
@@ -1831,7 +1831,7 @@ static void nic_cleanup(VLANClientState *nc)
     s->nic = NULL;
 }
 
-static int pci_nic_uninit(PCIDevice *pci_dev)
+static void pci_nic_uninit(PCIDevice *pci_dev)
 {
     EEPRO100State *s = DO_UPCAST(EEPRO100State, dev, pci_dev);
 
@@ -1841,7 +1841,6 @@ static int pci_nic_uninit(PCIDevice *pci_dev)
     vmstate_unregister(&pci_dev->qdev, s->vmstate, s);
     eeprom93xx_free(&pci_dev->qdev, s->eeprom);
     qemu_del_vlan_client(&s->nic->nc);
-    return 0;
 }
 
 static NetClientInfo net_eepro100_info = {
diff --git a/hw/es1370.c b/hw/es1370.c
index 573f747362..e34234c350 100644
--- a/hw/es1370.c
+++ b/hw/es1370.c
@@ -1018,12 +1018,11 @@ static int es1370_initfn (PCIDevice *dev)
     return 0;
 }
 
-static int es1370_exitfn (PCIDevice *dev)
+static void es1370_exitfn (PCIDevice *dev)
 {
     ES1370State *s = DO_UPCAST (ES1370State, dev, dev);
 
     memory_region_destroy (&s->io);
-    return 0;
 }
 
 int es1370_init (PCIBus *bus)
diff --git a/hw/ide/cmd646.c b/hw/ide/cmd646.c
index bf8ece4708..4ff3624aa9 100644
--- a/hw/ide/cmd646.c
+++ b/hw/ide/cmd646.c
@@ -295,7 +295,7 @@ static int pci_cmd646_ide_initfn(PCIDevice *dev)
     return 0;
 }
 
-static int pci_cmd646_ide_exitfn(PCIDevice *dev)
+static void pci_cmd646_ide_exitfn(PCIDevice *dev)
 {
     PCIIDEState *d = DO_UPCAST(PCIIDEState, dev, dev);
     unsigned i;
@@ -309,8 +309,6 @@ static int pci_cmd646_ide_exitfn(PCIDevice *dev)
         memory_region_destroy(&d->cmd646_bar[i].data);
     }
     memory_region_destroy(&d->bmdma_bar);
-
-    return 0;
 }
 
 void pci_cmd646_ide_init(PCIBus *bus, DriveInfo **hd_table,
diff --git a/hw/ide/ich.c b/hw/ide/ich.c
index e3eaaea882..c3a425b22f 100644
--- a/hw/ide/ich.c
+++ b/hw/ide/ich.c
@@ -132,15 +132,13 @@ static int pci_ich9_ahci_init(PCIDevice *dev)
     return 0;
 }
 
-static int pci_ich9_uninit(PCIDevice *dev)
+static void pci_ich9_uninit(PCIDevice *dev)
 {
     struct AHCIPCIState *d;
     d = DO_UPCAST(struct AHCIPCIState, card, dev);
 
     msi_uninit(dev);
     ahci_uninit(&d->ahci);
-
-    return 0;
 }
 
 static void ich_ahci_class_init(ObjectClass *klass, void *data)
diff --git a/hw/ide/piix.c b/hw/ide/piix.c
index bcaa400e2d..455c1b2698 100644
--- a/hw/ide/piix.c
+++ b/hw/ide/piix.c
@@ -199,7 +199,7 @@ PCIDevice *pci_piix3_xen_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn)
     return dev;
 }
 
-static int pci_piix_ide_exitfn(PCIDevice *dev)
+static void pci_piix_ide_exitfn(PCIDevice *dev)
 {
     PCIIDEState *d = DO_UPCAST(PCIIDEState, dev, dev);
     unsigned i;
@@ -211,8 +211,6 @@ static int pci_piix_ide_exitfn(PCIDevice *dev)
         memory_region_destroy(&d->bmdma[i].addr_ioport);
     }
     memory_region_destroy(&d->bmdma_bar);
-
-    return 0;
 }
 
 /* hd_table must contain 4 block drivers */
diff --git a/hw/ide/via.c b/hw/ide/via.c
index eec5136019..3e25085d42 100644
--- a/hw/ide/via.c
+++ b/hw/ide/via.c
@@ -189,7 +189,7 @@ static int vt82c686b_ide_initfn(PCIDevice *dev)
     return 0;
 }
 
-static int vt82c686b_ide_exitfn(PCIDevice *dev)
+static void vt82c686b_ide_exitfn(PCIDevice *dev)
 {
     PCIIDEState *d = DO_UPCAST(PCIIDEState, dev, dev);
     unsigned i;
@@ -201,8 +201,6 @@ static int vt82c686b_ide_exitfn(PCIDevice *dev)
         memory_region_destroy(&d->bmdma[i].addr_ioport);
     }
     memory_region_destroy(&d->bmdma_bar);
-
-    return 0;
 }
 
 void vt82c686b_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn)
diff --git a/hw/intel-hda.c b/hw/intel-hda.c
index 8f3b70bd14..04bed5e894 100644
--- a/hw/intel-hda.c
+++ b/hw/intel-hda.c
@@ -1144,13 +1144,12 @@ static int intel_hda_init(PCIDevice *pci)
     return 0;
 }
 
-static int intel_hda_exit(PCIDevice *pci)
+static void intel_hda_exit(PCIDevice *pci)
 {
     IntelHDAState *d = DO_UPCAST(IntelHDAState, pci, pci);
 
     msi_uninit(&d->pci);
     memory_region_destroy(&d->mmio);
-    return 0;
 }
 
 static int intel_hda_post_load(void *opaque, int version)
diff --git a/hw/ioh3420.c b/hw/ioh3420.c
index 0a2601cac4..94a537c9b3 100644
--- a/hw/ioh3420.c
+++ b/hw/ioh3420.c
@@ -96,7 +96,6 @@ static int ioh3420_initfn(PCIDevice *d)
     PCIEPort *p = DO_UPCAST(PCIEPort, br, br);
     PCIESlot *s = DO_UPCAST(PCIESlot, port, p);
     int rc;
-    int tmp;
 
     rc = pci_bridge_initfn(d);
     if (rc < 0) {
@@ -144,12 +143,11 @@ err_pcie_cap:
 err_msi:
     msi_uninit(d);
 err_bridge:
-    tmp = pci_bridge_exitfn(d);
-    assert(!tmp);
+    pci_bridge_exitfn(d);
     return rc;
 }
 
-static int ioh3420_exitfn(PCIDevice *d)
+static void ioh3420_exitfn(PCIDevice *d)
 {
     PCIBridge* br = DO_UPCAST(PCIBridge, dev, d);
     PCIEPort *p = DO_UPCAST(PCIEPort, br, br);
@@ -159,7 +157,7 @@ static int ioh3420_exitfn(PCIDevice *d)
     pcie_chassis_del_slot(s);
     pcie_cap_exit(d);
     msi_uninit(d);
-    return pci_bridge_exitfn(d);
+    pci_bridge_exitfn(d);
 }
 
 PCIESlot *ioh3420_init(PCIBus *bus, int devfn, bool multifunction,
diff --git a/hw/ivshmem.c b/hw/ivshmem.c
index 8b49eee8e9..7d4123cc38 100644
--- a/hw/ivshmem.c
+++ b/hw/ivshmem.c
@@ -760,7 +760,7 @@ static int pci_ivshmem_init(PCIDevice *dev)
     return 0;
 }
 
-static int pci_ivshmem_uninit(PCIDevice *dev)
+static void pci_ivshmem_uninit(PCIDevice *dev)
 {
     IVShmemState *s = DO_UPCAST(IVShmemState, dev, dev);
 
@@ -775,8 +775,6 @@ static int pci_ivshmem_uninit(PCIDevice *dev)
     memory_region_destroy(&s->ivshmem);
     memory_region_destroy(&s->bar);
     unregister_savevm(&dev->qdev, "ivshmem", s);
-
-    return 0;
 }
 
 static Property ivshmem_properties[] = {
diff --git a/hw/lsi53c895a.c b/hw/lsi53c895a.c
index f022a02447..9205f659fe 100644
--- a/hw/lsi53c895a.c
+++ b/hw/lsi53c895a.c
@@ -2070,15 +2070,13 @@ static const VMStateDescription vmstate_lsi_scsi = {
     }
 };
 
-static int lsi_scsi_uninit(PCIDevice *d)
+static void lsi_scsi_uninit(PCIDevice *d)
 {
     LSIState *s = DO_UPCAST(LSIState, dev, d);
 
     memory_region_destroy(&s->mmio_io);
     memory_region_destroy(&s->ram_io);
     memory_region_destroy(&s->io_io);
-
-    return 0;
 }
 
 static const struct SCSIBusInfo lsi_scsi_info = {
diff --git a/hw/ne2000.c b/hw/ne2000.c
index d02e60c4a6..afadbdbac1 100644
--- a/hw/ne2000.c
+++ b/hw/ne2000.c
@@ -744,14 +744,13 @@ static int pci_ne2000_init(PCIDevice *pci_dev)
     return 0;
 }
 
-static int pci_ne2000_exit(PCIDevice *pci_dev)
+static void pci_ne2000_exit(PCIDevice *pci_dev)
 {
     PCINE2000State *d = DO_UPCAST(PCINE2000State, dev, pci_dev);
     NE2000State *s = &d->ne2000;
 
     memory_region_destroy(&s->io);
     qemu_del_vlan_client(&s->nic->nc);
-    return 0;
 }
 
 static Property ne2000_properties[] = {
diff --git a/hw/pci.c b/hw/pci.c
index d5c664c9cd..f783362ae3 100644
--- a/hw/pci.c
+++ b/hw/pci.c
@@ -837,12 +837,10 @@ static int pci_unregister_device(DeviceState *dev)
 {
     PCIDevice *pci_dev = PCI_DEVICE(dev);
     PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(pci_dev);
-    int ret = 0;
 
-    if (pc->exit)
-        ret = pc->exit(pci_dev);
-    if (ret)
-        return ret;
+    if (pc->exit) {
+        pc->exit(pci_dev);
+    }
 
     pci_unregister_io_regions(pci_dev);
     pci_del_option_rom(pci_dev);
diff --git a/hw/pci.h b/hw/pci.h
index 44ae8715b0..6983b2f57a 100644
--- a/hw/pci.h
+++ b/hw/pci.h
@@ -85,7 +85,7 @@ typedef uint32_t PCIConfigReadFunc(PCIDevice *pci_dev,
                                    uint32_t address, int len);
 typedef void PCIMapIORegionFunc(PCIDevice *pci_dev, int region_num,
                                 pcibus_t addr, pcibus_t size, int type);
-typedef int PCIUnregisterFunc(PCIDevice *pci_dev);
+typedef void PCIUnregisterFunc(PCIDevice *pci_dev);
 
 typedef struct PCIIORegion {
     pcibus_t addr; /* current PCI mapping address. -1 means not mapped */
diff --git a/hw/pci_bridge.c b/hw/pci_bridge.c
index e0832b4a67..0125fd95fc 100644
--- a/hw/pci_bridge.c
+++ b/hw/pci_bridge.c
@@ -333,7 +333,7 @@ int pci_bridge_initfn(PCIDevice *dev)
 }
 
 /* default qdev clean up function for PCI-to-PCI bridge */
-int pci_bridge_exitfn(PCIDevice *pci_dev)
+void pci_bridge_exitfn(PCIDevice *pci_dev)
 {
     PCIBridge *s = DO_UPCAST(PCIBridge, dev, pci_dev);
     assert(QLIST_EMPTY(&s->sec_bus.child));
@@ -342,7 +342,6 @@ int pci_bridge_exitfn(PCIDevice *pci_dev)
     memory_region_destroy(&s->address_space_mem);
     memory_region_destroy(&s->address_space_io);
     /* qbus_free() is called automatically by qdev_free() */
-    return 0;
 }
 
 /*
diff --git a/hw/pci_bridge.h b/hw/pci_bridge.h
index 84411a69dc..a00accc172 100644
--- a/hw/pci_bridge.h
+++ b/hw/pci_bridge.h
@@ -44,7 +44,7 @@ void pci_bridge_reset_reg(PCIDevice *dev);
 void pci_bridge_reset(DeviceState *qdev);
 
 int pci_bridge_initfn(PCIDevice *pci_dev);
-int pci_bridge_exitfn(PCIDevice *pci_dev);
+void pci_bridge_exitfn(PCIDevice *pci_dev);
 
 
 /*
diff --git a/hw/pci_bridge_dev.c b/hw/pci_bridge_dev.c
index 1cc1d2049c..f7063961a0 100644
--- a/hw/pci_bridge_dev.c
+++ b/hw/pci_bridge_dev.c
@@ -52,7 +52,8 @@ static int pci_bridge_dev_initfn(PCIDevice *dev)
 {
     PCIBridge *br = DO_UPCAST(PCIBridge, dev, dev);
     PCIBridgeDev *bridge_dev = DO_UPCAST(PCIBridgeDev, bridge, br);
-    int err, ret;
+    int err;
+
     pci_bridge_map_irq(br, NULL, pci_bridge_dev_map_irq_fn);
     err = pci_bridge_initfn(dev);
     if (err) {
@@ -86,26 +87,22 @@ slotid_error:
     shpc_cleanup(dev, &bridge_dev->bar);
 shpc_error:
     memory_region_destroy(&bridge_dev->bar);
-    ret = pci_bridge_exitfn(dev);
-    assert(!ret);
+    pci_bridge_exitfn(dev);
 bridge_error:
     return err;
 }
 
-static int pci_bridge_dev_exitfn(PCIDevice *dev)
+static void pci_bridge_dev_exitfn(PCIDevice *dev)
 {
     PCIBridge *br = DO_UPCAST(PCIBridge, dev, dev);
     PCIBridgeDev *bridge_dev = DO_UPCAST(PCIBridgeDev, bridge, br);
-    int ret;
     if (msi_present(dev)) {
         msi_uninit(dev);
     }
     slotid_cap_cleanup(dev);
     shpc_cleanup(dev, &bridge_dev->bar);
     memory_region_destroy(&bridge_dev->bar);
-    ret = pci_bridge_exitfn(dev);
-    assert(!ret);
-    return 0;
+    pci_bridge_exitfn(dev);
 }
 
 static void pci_bridge_dev_write_config(PCIDevice *d,
diff --git a/hw/pcnet-pci.c b/hw/pcnet-pci.c
index 34d73aaea1..5439db3494 100644
--- a/hw/pcnet-pci.c
+++ b/hw/pcnet-pci.c
@@ -271,7 +271,7 @@ static void pci_pcnet_cleanup(VLANClientState *nc)
     pcnet_common_cleanup(d);
 }
 
-static int pci_pcnet_uninit(PCIDevice *dev)
+static void pci_pcnet_uninit(PCIDevice *dev)
 {
     PCIPCNetState *d = DO_UPCAST(PCIPCNetState, pci_dev, dev);
 
@@ -280,7 +280,6 @@ static int pci_pcnet_uninit(PCIDevice *dev)
     qemu_del_timer(d->state.poll_timer);
     qemu_free_timer(d->state.poll_timer);
     qemu_del_vlan_client(&d->state.nic->nc);
-    return 0;
 }
 
 static NetClientInfo net_pci_pcnet_info = {
diff --git a/hw/rtl8139.c b/hw/rtl8139.c
index 060404c137..a7a3f27084 100644
--- a/hw/rtl8139.c
+++ b/hw/rtl8139.c
@@ -3427,7 +3427,7 @@ static void rtl8139_cleanup(VLANClientState *nc)
     s->nic = NULL;
 }
 
-static int pci_rtl8139_uninit(PCIDevice *dev)
+static void pci_rtl8139_uninit(PCIDevice *dev)
 {
     RTL8139State *s = DO_UPCAST(RTL8139State, dev, dev);
 
@@ -3440,7 +3440,6 @@ static int pci_rtl8139_uninit(PCIDevice *dev)
     qemu_del_timer(s->timer);
     qemu_free_timer(s->timer);
     qemu_del_vlan_client(&s->nic->nc);
-    return 0;
 }
 
 static NetClientInfo net_rtl8139_info = {
diff --git a/hw/usb/hcd-uhci.c b/hw/usb/hcd-uhci.c
index 9e211a0bb4..04aabd9aac 100644
--- a/hw/usb/hcd-uhci.c
+++ b/hw/usb/hcd-uhci.c
@@ -1233,12 +1233,11 @@ static int usb_uhci_vt82c686b_initfn(PCIDevice *dev)
     return usb_uhci_common_initfn(dev);
 }
 
-static int usb_uhci_exit(PCIDevice *dev)
+static void usb_uhci_exit(PCIDevice *dev)
 {
     UHCIState *s = DO_UPCAST(UHCIState, dev, dev);
 
     memory_region_destroy(&s->io_bar);
-    return 0;
 }
 
 static Property uhci_properties[] = {
diff --git a/hw/virtio-pci.c b/hw/virtio-pci.c
index 3dca37ff0c..6ed21b75c8 100644
--- a/hw/virtio-pci.c
+++ b/hw/virtio-pci.c
@@ -828,22 +828,21 @@ static int virtio_blk_init_pci(PCIDevice *pci_dev)
     return 0;
 }
 
-static int virtio_exit_pci(PCIDevice *pci_dev)
+static void virtio_exit_pci(PCIDevice *pci_dev)
 {
     VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev);
 
     memory_region_destroy(&proxy->bar);
     msix_uninit_exclusive_bar(pci_dev);
-    return 0;
 }
 
-static int virtio_blk_exit_pci(PCIDevice *pci_dev)
+static void virtio_blk_exit_pci(PCIDevice *pci_dev)
 {
     VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev);
 
     virtio_pci_stop_ioeventfd(proxy);
     virtio_blk_exit(proxy->vdev);
-    return virtio_exit_pci(pci_dev);
+    virtio_exit_pci(pci_dev);
 }
 
 static int virtio_serial_init_pci(PCIDevice *pci_dev)
@@ -868,13 +867,13 @@ static int virtio_serial_init_pci(PCIDevice *pci_dev)
     return 0;
 }
 
-static int virtio_serial_exit_pci(PCIDevice *pci_dev)
+static void virtio_serial_exit_pci(PCIDevice *pci_dev)
 {
     VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev);
 
     virtio_pci_stop_ioeventfd(proxy);
     virtio_serial_exit(proxy->vdev);
-    return virtio_exit_pci(pci_dev);
+    virtio_exit_pci(pci_dev);
 }
 
 static int virtio_net_init_pci(PCIDevice *pci_dev)
@@ -892,13 +891,13 @@ static int virtio_net_init_pci(PCIDevice *pci_dev)
     return 0;
 }
 
-static int virtio_net_exit_pci(PCIDevice *pci_dev)
+static void virtio_net_exit_pci(PCIDevice *pci_dev)
 {
     VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev);
 
     virtio_pci_stop_ioeventfd(proxy);
     virtio_net_exit(proxy->vdev);
-    return virtio_exit_pci(pci_dev);
+    virtio_exit_pci(pci_dev);
 }
 
 static int virtio_balloon_init_pci(PCIDevice *pci_dev)
@@ -919,13 +918,13 @@ static int virtio_balloon_init_pci(PCIDevice *pci_dev)
     return 0;
 }
 
-static int virtio_balloon_exit_pci(PCIDevice *pci_dev)
+static void virtio_balloon_exit_pci(PCIDevice *pci_dev)
 {
     VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev);
 
     virtio_pci_stop_ioeventfd(proxy);
     virtio_balloon_exit(proxy->vdev);
-    return virtio_exit_pci(pci_dev);
+    virtio_exit_pci(pci_dev);
 }
 
 static Property virtio_blk_properties[] = {
@@ -1074,12 +1073,12 @@ static int virtio_scsi_init_pci(PCIDevice *pci_dev)
     return 0;
 }
 
-static int virtio_scsi_exit_pci(PCIDevice *pci_dev)
+static void virtio_scsi_exit_pci(PCIDevice *pci_dev)
 {
     VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev);
 
     virtio_scsi_exit(proxy->vdev);
-    return virtio_exit_pci(pci_dev);
+    virtio_exit_pci(pci_dev);
 }
 
 static Property virtio_scsi_properties[] = {
diff --git a/hw/wdt_i6300esb.c b/hw/wdt_i6300esb.c
index 15c69db932..4a83474906 100644
--- a/hw/wdt_i6300esb.c
+++ b/hw/wdt_i6300esb.c
@@ -411,13 +411,11 @@ static int i6300esb_init(PCIDevice *dev)
     return 0;
 }
 
-static int i6300esb_exit(PCIDevice *dev)
+static void i6300esb_exit(PCIDevice *dev)
 {
     I6300State *d = DO_UPCAST(I6300State, dev, dev);
 
     memory_region_destroy(&d->io_mem);
-
-    return 0;
 }
 
 static WatchdogTimerModel model = {
diff --git a/hw/xio3130_downstream.c b/hw/xio3130_downstream.c
index 56d1b353d0..0d8a5e7020 100644
--- a/hw/xio3130_downstream.c
+++ b/hw/xio3130_downstream.c
@@ -60,7 +60,6 @@ static int xio3130_downstream_initfn(PCIDevice *d)
     PCIEPort *p = DO_UPCAST(PCIEPort, br, br);
     PCIESlot *s = DO_UPCAST(PCIESlot, port, p);
     int rc;
-    int tmp;
 
     rc = pci_bridge_initfn(d);
     if (rc < 0) {
@@ -108,12 +107,11 @@ err_pcie_cap:
 err_msi:
     msi_uninit(d);
 err_bridge:
-    tmp = pci_bridge_exitfn(d);
-    assert(!tmp);
+    pci_bridge_exitfn(d);
     return rc;
 }
 
-static int xio3130_downstream_exitfn(PCIDevice *d)
+static void xio3130_downstream_exitfn(PCIDevice *d)
 {
     PCIBridge* br = DO_UPCAST(PCIBridge, dev, d);
     PCIEPort *p = DO_UPCAST(PCIEPort, br, br);
@@ -123,7 +121,7 @@ static int xio3130_downstream_exitfn(PCIDevice *d)
     pcie_chassis_del_slot(s);
     pcie_cap_exit(d);
     msi_uninit(d);
-    return pci_bridge_exitfn(d);
+    pci_bridge_exitfn(d);
 }
 
 PCIESlot *xio3130_downstream_init(PCIBus *bus, int devfn, bool multifunction,
diff --git a/hw/xio3130_upstream.c b/hw/xio3130_upstream.c
index 79725813a2..d46b86c74d 100644
--- a/hw/xio3130_upstream.c
+++ b/hw/xio3130_upstream.c
@@ -56,7 +56,6 @@ static int xio3130_upstream_initfn(PCIDevice *d)
     PCIBridge* br = DO_UPCAST(PCIBridge, dev, d);
     PCIEPort *p = DO_UPCAST(PCIEPort, br, br);
     int rc;
-    int tmp;
 
     rc = pci_bridge_initfn(d);
     if (rc < 0) {
@@ -95,17 +94,16 @@ err:
 err_msi:
     msi_uninit(d);
 err_bridge:
-    tmp =  pci_bridge_exitfn(d);
-    assert(!tmp);
+    pci_bridge_exitfn(d);
     return rc;
 }
 
-static int xio3130_upstream_exitfn(PCIDevice *d)
+static void xio3130_upstream_exitfn(PCIDevice *d)
 {
     pcie_aer_exit(d);
     pcie_cap_exit(d);
     msi_uninit(d);
-    return pci_bridge_exitfn(d);
+    pci_bridge_exitfn(d);
 }
 
 PCIEPort *xio3130_upstream_init(PCIBus *bus, int devfn, bool multifunction,
-- 
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