[dpdk-dev] [PATCH] net/tap: release port upon close

[Ferruh Yigit]

On 8/28/2020 1:37 PM, wangyunjian wrote:
> From: Yunjian Wang <wangyunjian at huawei.com>
> 
> Set RTE_ETH_DEV_CLOSE_REMOVE upon probe so all the private
> resources for the port can be freed by rte_eth_dev_close().
> 
> Signed-off-by: Yunjian Wang <wangyunjian at huawei.com>

<...>

> @@ -1040,6 +1044,9 @@ tap_dev_close(struct rte_eth_dev *dev)
>  	struct pmd_process_private *process_private = dev->process_private;
>  	struct rx_queue *rxq;
>  
> +	if (process_private == NULL)
> +		return;

Why this check is required?