Re: [dpdk-web] [PATCH] net/ipn3ke: check input arguement before other operation

["Xu, Rosen" <rosen.xu@intel.com>]

> -----Original Message-----
> From: Pei, Andy
> Sent: Wednesday, May 22, 2019 15:05
> To: web@dpdk.org
> Cc: Pei, Andy <andy.pei@intel.com>; Xu, Rosen <rosen.xu@intel.com>;
> stable@dpdk.org
> Subject: [PATCH] net/ipn3ke: check input arguement before other operation
> 
> check input arguement rte_eth_dev *ethdev, ensuring ethdev is not NULl
> before operation on ethdev.
> 
> Coverity issue: 337922
> Fixes: 70d6b7f550f4 ("net/ipn3ke: add representor")
> Cc: rosen.xu@intel.com
> Cc: stable@dpdk.org
> 
> Signed-off-by: Andy Pei <andy.pei@intel.com>
> ---
>  drivers/net/ipn3ke/ipn3ke_representor.c | 7 +++++--
>  1 file changed, 5 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/ipn3ke/ipn3ke_representor.c
> b/drivers/net/ipn3ke/ipn3ke_representor.c
> index cf3b214..32d4fc8 100644
> --- a/drivers/net/ipn3ke/ipn3ke_representor.c
> +++ b/drivers/net/ipn3ke/ipn3ke_representor.c
> @@ -735,13 +735,16 @@
>  	enum rte_filter_type filter_type, enum rte_filter_op filter_op,
>  	void *arg)
>  {
> -	struct ipn3ke_hw *hw = IPN3KE_DEV_PRIVATE_TO_HW(ethdev);
> -	struct ipn3ke_rpst *rpst = IPN3KE_DEV_PRIVATE_TO_RPST(ethdev);
>  	int ret = 0;
> +	struct ipn3ke_hw *hw = NULL;
> +	struct ipn3ke_rpst *rpst = NULL;

No need to initialize point variable.

>  	if (ethdev == NULL)
>  		return -EINVAL;
> 
> +	hw = IPN3KE_DEV_PRIVATE_TO_HW(ethdev);
> +	rpst = IPN3KE_DEV_PRIVATE_TO_RPST(ethdev);
> +
>  	if (hw->acc_flow)
>  		switch (filter_type) {
>  		case RTE_ETH_FILTER_GENERIC:
> --
> 1.8.3.1