SysBusDevice::mmio[] is kind of internal. Use the proper
sysbus_mmio_get_region() accessor.

Signed-off-by: Philippe Mathieu-Daudé <[email protected]>
---
 hw/pci-bridge/pci_expander_bridge.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/hw/pci-bridge/pci_expander_bridge.c 
b/hw/pci-bridge/pci_expander_bridge.c
index 1bcceddbc4d..b4e2c95ae4c 100644
--- a/hw/pci-bridge/pci_expander_bridge.c
+++ b/hw/pci-bridge/pci_expander_bridge.c
@@ -157,9 +157,9 @@ static char *pxb_host_ofw_unit_address(const SysBusDevice 
*dev)
     main_host = PCI_HOST_BRIDGE(pxb_dev_base->parent_bus->parent);
     main_host_sbd = SYS_BUS_DEVICE(main_host);
 
-    if (main_host_sbd->num_mmio > 0) {
-        return g_strdup_printf(HWADDR_FMT_plx ",%x",
-                               main_host_sbd->mmio[0].addr, position + 1);
+    if (sysbus_has_mmio(main_host_sbd, 0)) {
+        MemoryRegion *mr = sysbus_mmio_get_region(main_host_sbd, 0);
+        return g_strdup_printf(HWADDR_FMT_plx ",%x", mr->addr, position + 1);
     }
     if (main_host_sbd->num_pio > 0) {
         return g_strdup_printf("i%04x,%x",
-- 
2.51.0


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