Commit b645000e authored by Saravanakumar's avatar Saravanakumar Committed by Michael Tokarev
Browse files

pci: move dereferencing of root only after verifying valid root pointer 



Signed-off-by: default avatarSaravanakumar <saravanakumar.punith@gmail.com>
Reviewed-by: default avatarAndreas Färber <afaerber@suse.de>
Reviewed-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: default avatarMichael Tokarev <mjt@tls.msk.ru>
parent e35f29de

hw/pci/pci.c

+2 −2
Original line number Diff line number Diff line
@@ -605,13 +605,13 @@ PCIBus *pci_get_bus_devfn(int *devfnp, PCIBus *root, const char *devaddr) 
    int dom, bus;

    unsigned slot;



    assert(!root->parent_dev);



    if (!root) {

        fprintf(stderr, "No primary PCI bus\n");

        return NULL;

    }



    assert(!root->parent_dev);



    if (!devaddr) {

        *devfnp = -1;

        return pci_find_bus_nr(root, 0);