[dpdk-dev] net/virtio: fix memory leak
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Commit Message
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>
---
drivers/net/virtio/virtio_ethdev.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
Comments
On Fri, Oct 27, 2017 at 11:54:09AM +0800, Pengzhen Liu wrote:
> 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>
--yliu
On Wed, Nov 01, 2017 at 11:33:51PM +0800, Yuanhan Liu wrote:
> On Fri, Oct 27, 2017 at 11:54:09AM +0800, Pengzhen Liu wrote:
> > 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>
BTW, I have just seen you have send multiple versions out regarding this
patch. Next time please tag your patches with version, something like:
$ git format-patch -v 2 ...
--yliu
01/11/2017 16:33, Yuanhan Liu:
> On Fri, Oct 27, 2017 at 11:54:09AM +0800, Pengzhen Liu wrote:
> > 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>
Applied, thanks
@@ -1588,13 +1588,13 @@ static int virtio_dev_xstats_get_names(struct rte_eth_dev *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)
@@ -1602,6 +1602,10 @@ static int virtio_dev_xstats_get_names(struct rte_eth_dev *dev,
virtio_interrupt_handler, eth_dev);
return 0;
+
+out:
+ rte_free(eth_dev->data->mac_addrs);
+ return ret;
}
static int