On Tue, Aug 24, 2010 at 09:27:10PM +0800, Ken CC wrote:
> Check if devfn < PCIBUS_MAX_DEVICES * PCI_FUNCTIONS_PER_DEVICE
>
> Signed-off-by: Ken CC <ken.ccao@xxxxxxxxx>
> ---
> hw/pci.c | 1 +
> 1 files changed, 1 insertions(+), 0 deletions(-)
>
> diff --git a/hw/pci.c b/hw/pci.c
> index 9234fe3..fc4becd 100644
> --- a/hw/pci.c
> +++ b/hw/pci.c
> @@ -747,6 +747,7 @@ static PCIDevice *do_pci_register_device(PCIDevice *pci_dev, PCIBus *bus,
> PCIConfigWriteFunc *config_write,
> bool is_bridge)
> {
> + assert(devfn / PCI_FUNCTIONS_PER_DEVICE < PCIBUS_MAX_DEVICES);
I guess it'll happen to work even for < 0, but it might be obvious
to only do this in >= 0 case.
Just remove the 'else' and stick the assert there.
> if (devfn < 0) {
> for(devfn = bus->devfn_min ; devfn < ARRAY_SIZE(bus->devices);
> devfn += PCI_FUNC_MAX) {
--
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