net/virtio: fix queue memory leak on error

[ upstream commit 2b38151 ]

We should free queues when we failed to initialize the virtio device.

Fixes: 26b683b ("net/virtio: setup Rx queue interrupts")

Signed-off-by: Tiwei Bie <tiwei.bie@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>

drivers/net/virtio/virtio_ethdev.c

@@ -1593,6 +1593,7 @@ virtio_init_device(struct rte_eth_dev *eth_dev, uint64_t req_features)
 	if (eth_dev->data->dev_conf.intr_conf.rxq) {
 		if (virtio_configure_intr(eth_dev) < 0) {
 			PMD_INIT_LOG(ERR, "failed to configure interrupt");
+			virtio_free_queues(hw);
 			return -1;
 		}
 	}