[PATCH] vdpa/mlx5: return correct error code after rte_intr_instance_alloc failed

[835703180 at qq.com]

From: newsky647 <835703180 at qq.com>

After function rte_intr_instance_alloc failed, we should return ENOMEM
for error code.

Fixes: 5fe068bf7a2 ("vdpa/mlx5: reuse resources in reconfiguration")

Signed-off-by: newsky647 <835703180 at qq.com>
---
 drivers/vdpa/mlx5/mlx5_vdpa_event.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/vdpa/mlx5/mlx5_vdpa_event.c b/drivers/vdpa/mlx5/mlx5_vdpa_event.c
index 7167a98db0..6223afaae8 100644
--- a/drivers/vdpa/mlx5/mlx5_vdpa_event.c
+++ b/drivers/vdpa/mlx5/mlx5_vdpa_event.c
@@ -395,6 +395,7 @@ mlx5_vdpa_err_event_setup(struct mlx5_vdpa_priv *priv)
 		rte_intr_instance_alloc(RTE_INTR_INSTANCE_F_SHARED);
 	if (priv->err_intr_handle == NULL) {
 		DRV_LOG(ERR, "Fail to allocate intr_handle");
+		rte_errno = ENOMEM;
 		goto error;
 	}
 	if (rte_intr_fd_set(priv->err_intr_handle, priv->err_chnl->fd))
-- 
2.35.1.windows.2