X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=drivers%2Fnet%2Fvirtio%2Fvirtio_pci.c;h=c8883c32e96c806524b8f3b5e0b61d418fb3382c;hb=refs%2Ftags%2Fupstream%2F18.11-rc3;hp=21110cd698efb6c0cdab26b42d9a0edea11c27fe;hpb=88fab00d4402af240c1b7cc2566133aece115488;p=deb_dpdk.git

diff --git a/drivers/net/virtio/virtio_pci.c b/drivers/net/virtio/virtio_pci.c
index 21110cd6..c8883c32 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);