Coverity issue: 302861
Fixes: 6ba1f63b5ab0 ("virtio: support specification 1.0")Signed-off-by: Tiwei Bie <[email protected]> --- This patch can't be backported because it depends on the API change introduced by below commit in this release. commit e8d435f1f3a1 ("bus/pci: harmonize return value of config read") drivers/net/virtio/virtio_pci.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/net/virtio/virtio_pci.c b/drivers/net/virtio/virtio_pci.c index 21110cd69..c8883c32e 100644 --- a/drivers/net/virtio/virtio_pci.c +++ b/drivers/net/virtio/virtio_pci.c @@ -614,9 +614,15 @@ virtio_read_caps(struct rte_pci_device *dev, struct virtio_hw *hw) hw->common_cfg = get_cfg_addr(dev, &cap); break; case VIRTIO_PCI_CAP_NOTIFY_CFG: - rte_pci_read_config(dev, &hw->notify_off_multiplier, + ret = rte_pci_read_config(dev, + &hw->notify_off_multiplier, 4, pos + sizeof(cap)); - hw->notify_base = get_cfg_addr(dev, &cap); + if (ret != 4) + PMD_INIT_LOG(DEBUG, + "failed to read notify_off_multiplier, ret %d", + ret); + else + hw->notify_base = get_cfg_addr(dev, &cap); break; case VIRTIO_PCI_CAP_DEVICE_CFG: hw->dev_cfg = get_cfg_addr(dev, &cap); -- 2.19.1
