virtio: fix build with debug enabled

With CONFIG_RTE_LIBRTE_VIRTIO_DEBUG_INIT=y:
	error: ‘devname’ undeclared (first use in this function)

Fixes: da978dfdc43b ("virtio: use port IO to get PCI resource")

Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Acked-by: Changchun Ouyang <changchun.ouyang@intel.com>

diff --git a/lib/librte_pmd_virtio/virtio_ethdev.c b/lib/librte_pmd_virtio/virtio_ethdev.c
index 4bad1e4..d239083 100644 (file)
--- a/lib/librte_pmd_virtio/virtio_ethdev.c
+++ b/lib/librte_pmd_virtio/virtio_ethdev.c
@@ -971,7 +971,7 @@ static int virtio_resource_init_by_uio(struct rte_pci_device *pci_dev)
        pci_dev->intr_handle.fd = open(dirname, O_RDWR);
        if (pci_dev->intr_handle.fd < 0) {
                PMD_INIT_LOG(ERR, "Cannot open %s: %s\n",
-                       devname, strerror(errno));
+                       dirname, strerror(errno));
                return -1;
        }