While pci_bus_realize() currently does not use the Error* argument,
it would be an error to leave pcie_bus_realize() setting bus->flags
if pci_bus_realize() had failed.

Fix by using a local Error* and return early (propagating the error)
if pci_bus_realize() failed.

Reported-by: Markus Armbruster <arm...@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <phi...@redhat.com>
---
 hw/pci/pci.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index 512e9042ffa..0d12e94a02e 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -130,8 +130,13 @@ static void pci_bus_realize(BusState *qbus, Error **errp)
 static void pcie_bus_realize(BusState *qbus, Error **errp)
 {
     PCIBus *bus = PCI_BUS(qbus);
+    Error *local_err = NULL;
 
-    pci_bus_realize(qbus, errp);
+    pci_bus_realize(qbus, &local_err);
+    if (local_err) {
+        error_propagate(errp, local_err);
+        return;
+    }
 
     /*
      * A PCI-E bus can support extended config space if it's the root
-- 
2.26.2


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