regex/mlx5: fix crash on probe failure

[dpdk.git] / drivers / regex / mlx5 / mlx5_regex.c

diff --git a/drivers/regex/mlx5/mlx5_regex.c b/drivers/regex/mlx5/mlx5_regex.c
index 17590b9..c91c444 100644 (file)
--- a/drivers/regex/mlx5/mlx5_regex.c
+++ b/drivers/regex/mlx5/mlx5_regex.c
@@ -157,7 +157,7 @@ mlx5_regex_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
        if (!priv) {
                DRV_LOG(ERR, "Failed to allocate private memory.");
                rte_errno = ENOMEM;
-               goto error;
+               goto dev_error;
        }
        priv->ctx = ctx;
        priv->nb_engines = 2; /* attr.regexp_num_of_engines */
@@ -176,7 +176,12 @@ mlx5_regex_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
                rte_errno = ENOMEM;
                goto error;
        }
-       priv->uar = mlx5_glue->devx_alloc_uar(ctx, 0);
+       /*
+        * This PMD always claims the write memory barrier on UAR
+        * registers writings, it is safe to allocate UAR with any
+        * memory mapping type.
+        */
+       priv->uar = mlx5_devx_alloc_uar(ctx, -1);
        if (!priv->uar) {
                DRV_LOG(ERR, "can't allocate uar.");
                rte_errno = ENOMEM;