[PATCH v2] net/mlx5: fix memoy leak after device spawn failure

[Wangyunjian]

Friendly ping

> -----Original Message-----
> From: Wangyunjian <wangyunjian at huawei.com>
> Sent: Thursday, December 18, 2025 6:57 PM
> To: dev at dpdk.org
> Cc: matan at nvidia.com; suanmingm at nvidia.com; Lilijun (Jerry)
> <jerry.lilijun at huawei.com>; Wangyunjian <wangyunjian at huawei.com>;
> stable at dpdk.org
> Subject: [PATCH v2] net/mlx5: fix memoy leak after device spawn failure
> 
> In mlx5_dev_spawn() allocated memory for the 'priv->flows', we should free it
> when errors occur, otherwise it will lead to memory leak.
> 
> Fixes: b4edeaf3efd5 ("net/mlx5: replace flow list with indexed pool")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Yunjian Wang <wangyunjian at huawei.com>
> ---
> v2: fix code styles
> ---
>  drivers/net/mlx5/linux/mlx5_os.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/drivers/net/mlx5/linux/mlx5_os.c b/drivers/net/mlx5/linux/mlx5_os.c
> index 7f73183bb1..7624b2aba2 100644
> --- a/drivers/net/mlx5/linux/mlx5_os.c
> +++ b/drivers/net/mlx5/linux/mlx5_os.c
> @@ -1831,6 +1831,11 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev,
>  			close(priv->nl_socket_route);
>  		if (priv->vmwa_context)
>  			mlx5_vlan_vmwa_exit(priv->vmwa_context);
> +		for (i = 0; i < MLX5_FLOW_TYPE_MAXI; i++) {
> +			if (!priv->flows[i])
> +				continue;
> +			mlx5_ipool_destroy(priv->flows[i]);
> +		}
>  		if (eth_dev && priv->drop_queue.hrxq)
>  			mlx5_drop_action_destroy(eth_dev);
>  		if (priv->mtr_profile_tbl)
> --
> 2.33.0