From: Pengzhen Liu <liupengzhen3@huawei.com>
Date: Fri, 27 Oct 2017 03:54:09 +0000 (+0800)
Subject: net/virtio: fix memory leak on failure
X-Git-Tag: spdx-start~825
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=43d18765c027;p=dpdk.git

net/virtio: fix memory leak on failure

In function eth_virtio_dev_init(), dynamic memory stored
in "eth_dev->data->mac_addrs" variable and it is not freed
when function return,
this is a possible memory leak.

Fixes: 8ced1542f7a3 ("net/virtio: eth_dev->data->mac_addrs is not freed")
Cc: stable@dpdk.org

Signed-off-by: Pengzhen Liu <liupengzhen3@huawei.com>
Acked-by: Yuanhan Liu <yliu@fridaylinux.org>
---

diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index 87ac2bee6d..e0328f61d1 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -1620,13 +1620,13 @@ eth_virtio_dev_init(struct rte_eth_dev *eth_dev)
 	if (!hw->virtio_user_dev) {
 		ret = vtpci_init(RTE_ETH_DEV_TO_PCI(eth_dev), hw);
 		if (ret)
-			return ret;
+			goto out;
 	}
 
 	/* reset device and negotiate default features */
 	ret = virtio_init_device(eth_dev, VIRTIO_PMD_DEFAULT_GUEST_FEATURES);
 	if (ret < 0)
-		return ret;
+		goto out;
 
 	/* Setup interrupt callback  */
 	if (eth_dev->data->dev_flags & RTE_ETH_DEV_INTR_LSC)
@@ -1634,6 +1634,10 @@ eth_virtio_dev_init(struct rte_eth_dev *eth_dev)
 			virtio_interrupt_handler, eth_dev);
 
 	return 0;
+
+out:
+	rte_free(eth_dev->data->mac_addrs);
+	return ret;
 }
 
 static int