[dpdk-stable] [PATCH v4] net/virtio: fix repeated memory free of vq

[Gaoxiang Liu]

Hi, chenbo, maxime.
Please help to review the patch.
The patch has been proposed a month ago.


At 2021-08-31 22:39:51, "Gaoxiang Liu" <gaoxiangliu0 at 163.com> wrote:
>When virtio_init_queue returns error, the memory of vq is freed.
>But the value of hw->vqs[queue_idx] does not restore.
>If virtio_init_queue returns error, the memory of vq is freed again
>in virtio_free_queues.
>
>Fixes: 69c80d4ef89b ("net/virtio: allocate queue at init stage")
>Cc: stable at dpdk.org
>
>Signed-off-by: Gaoxiang Liu <liugaoxiang at huawei.com>
>---
>
>v2:
>* Fix spelling warning
>
>v3:
>* Add detailed log
>
>v4:
>* Update the email address
>---
> drivers/net/virtio/virtio_ethdev.c | 1 +
> 1 file changed, 1 insertion(+)
>
>diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
>index 056830566..fc72d71cb 100644
>--- a/drivers/net/virtio/virtio_ethdev.c
>+++ b/drivers/net/virtio/virtio_ethdev.c
>@@ -631,6 +631,7 @@ virtio_init_queue(struct rte_eth_dev *dev, uint16_t queue_idx)
> 	rte_memzone_free(mz);
> free_vq:
> 	rte_free(vq);
>+	hw->vqs[queue_idx] = NULL;
> 
> 	return ret;
> }
>-- 
>2.32.0