[PATCH] Don't unregister unassigned PCI BAR

[Gleb Natapov <gleb@xxxxxxxxxx>]

Signed-off-by: Gleb Natapov <gleb@xxxxxxxxxx>
diff --git a/qemu/hw/pci.c b/qemu/hw/pci.c
index 04aecc2..a6d57e5 100644
--- a/qemu/hw/pci.c
+++ b/qemu/hw/pci.c
@@ -213,7 +213,7 @@ static void pci_unregister_io_regions(PCIDevice *pci_dev)
 
     for(i = 0; i < PCI_NUM_REGIONS; i++) {
         r = &pci_dev->io_regions[i];
-        if (!r->size)
+        if (!r->size || r->addr == -1)
             continue;
         if (r->type == PCI_ADDRESS_SPACE_IO) {
             isa_unassign_ioport(r->addr, r->size);
--
			Gleb.
--
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