Commit c53598ed authored by Alexey Kardashevskiy's avatar Alexey Kardashevskiy Committed by Michael S. Tsirkin
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pci: Add missing drop of bus master AS reference 



The recent introduction of a bus master container added
memory_region_add_subregion() into the PCI device registering path but
missed memory_region_del_subregion() in the unregistering path leaving
a reference to the root memory region of the new container.

This adds missing memory_region_del_subregion().

Fixes: 3716d590 ("pci: introduce a bus master container")
Signed-off-by: default avatarAlexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Reviewed-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent aa262928

hw/pci/pci.c

+2 −0
Original line number Diff line number Diff line
@@ -869,6 +869,8 @@ static void do_pci_unregister_device(PCIDevice *pci_dev) 
    pci_dev->bus->devices[pci_dev->devfn] = NULL;

    pci_config_free(pci_dev);



    memory_region_del_subregion(&pci_dev->bus_master_container_region,

                                &pci_dev->bus_master_enable_region);

    address_space_destroy(&pci_dev->bus_master_as);

}