diff options
| -rw-r--r-- | hw/virtio/virtio-pci.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c index f1e105fa52..1bef7a2be8 100644 --- a/hw/virtio/virtio-pci.c +++ b/hw/virtio/virtio-pci.c @@ -1147,6 +1147,10 @@ static uint64_t virtio_pci_common_read(void *opaque, hwaddr addr, uint32_t val = 0; int i; + if (vdev == NULL) { + return UINT64_MAX; + } + switch (addr) { case VIRTIO_PCI_COMMON_DFSELECT: val = proxy->dfselect; @@ -1230,6 +1234,10 @@ static void virtio_pci_common_write(void *opaque, hwaddr addr, VirtIOPCIProxy *proxy = opaque; VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); + if (vdev == NULL) { + return; + } + switch (addr) { case VIRTIO_PCI_COMMON_DFSELECT: proxy->dfselect = val; |