[dpdk-dev] [PATCH 3/3] net/virtio: fix memory leak when reinitializing device

[Olivier Matz]

Free the previous queues and the attached mbufs before initializing new
ones.

Cc: sta...@dpdk.org
Fixes: 60e6f4707ef2 ("net/virtio: reinitialize device when configuring")

Signed-off-by: Zijie Pan <zijie....@6wind.com>
Signed-off-by: Olivier Matz <olivier.m...@6wind.com>
---
 drivers/net/virtio/virtio_ethdev.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/virtio/virtio_ethdev.c 
b/drivers/net/virtio/virtio_ethdev.c
index d8b3b8ed7..977fd61f5 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -1379,6 +1379,11 @@ virtio_init_device(struct rte_eth_dev *eth_dev, uint64_t 
req_features)
        /* Reset the device although not necessary at startup */
        vtpci_reset(hw);
 
+       if (hw->vqs) {
+               virtio_dev_free_mbufs(eth_dev);
+               virtio_free_queues(hw);
+       }
+
        /* Tell the host we've noticed this device. */
        vtpci_set_status(hw, VIRTIO_CONFIG_STATUS_ACK);
 
-- 
2.11.0