[dpdk-stable] [PATCH v2] vdpa/mlx5: fix device unplug

[Matan Azrad]

The vDPA PCI device unplug process should release all the private
device resources and also to unregister the device.

The device unregistration was missed what remained the device data
invalid in the rte_vhost library.

Unregister the device in unplug process via the remove operation.

Fixes: 95276abaaf0a ("vdpa/mlx5: introduce Mellanox vDPA driver")
Cc: stable at dpdk.org

Reported-by: Eli Britstein <elibr at nvidia.com>
Signed-off-by: Matan Azrad <matan at nvidia.com>
Tested-by: Eli Britstein <elibr at nvidia.com>
Acked-by: Xueming Li <xuemingl at nvidia.com>
---
 drivers/vdpa/mlx5/mlx5_vdpa.c | 2 ++
 1 file changed, 2 insertions(+)

v2:
fix spelling and email format

diff --git a/drivers/vdpa/mlx5/mlx5_vdpa.c b/drivers/vdpa/mlx5/mlx5_vdpa.c
index 40db28b6db..e5e03e6582 100644
--- a/drivers/vdpa/mlx5/mlx5_vdpa.c
+++ b/drivers/vdpa/mlx5/mlx5_vdpa.c
@@ -787,6 +787,8 @@ mlx5_vdpa_pci_remove(struct rte_pci_device *pci_dev)
 			mlx5_glue->dv_free_var(priv->var);
 			priv->var = NULL;
 		}
+		if (priv->vdev)
+			rte_vdpa_unregister_device(priv->vdev);
 		mlx5_glue->close_device(priv->ctx);
 		pthread_mutex_destroy(&priv->vq_config_lock);
 		rte_free(priv);
-- 
2.25.1