Also touch up the logic in do_pci_register_device() accordingly.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayl...@ilande.co.uk>
---
hw/pci/pci.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index 0c6f74a..efc9c86 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -951,6 +951,11 @@ uint16_t pci_requester_id(PCIDevice *dev)
return pci_req_id_cache_extract(&dev->requester_id_cache);
}
+static bool pci_bus_devfn_available(PCIBus *bus, int devfn)
+{
+ return !(bus->devices[devfn]);
+}
+
/* -1 for devfn means auto assign */
static PCIDevice *do_pci_register_device(PCIDevice *pci_dev, PCIBus *bus,
const char *name, int devfn,
@@ -974,14 +979,15 @@ static PCIDevice *do_pci_register_device(PCIDevice
*pci_dev, PCIBus *bus,
if (devfn < 0) {
for(devfn = bus->devfn_min ; devfn < ARRAY_SIZE(bus->devices);
devfn += PCI_FUNC_MAX) {
- if (!bus->devices[devfn])
+ if (pci_bus_devfn_available(bus, devfn)) {
goto found;
+ }
}
error_setg(errp, "PCI: no slot/function available for %s, all in use",
name);
return NULL;
found: ;
- } else if (bus->devices[devfn]) {
+ } else if (!pci_bus_devfn_available(bus, devfn)) {
error_setg(errp, "PCI: slot %d function %d not available for %s,"
" in use by %s",
PCI_SLOT(devfn), PCI_FUNC(devfn), name,
--
1.7.10.4
