[dpdk-dev] [PATCH 1/1] net/i40e: check return value of rte_zmalloc

[Ferruh Yigit]

On 3/25/2017 12:30 PM, caihe wrote:
> Hi helin,
> 
> There is a bug without check the return value of alloc memory in function i40evf_add_del_all_mac_addr,
> if we should fix it as below:

Hi Caihe,

Thank you for the patches.

There are a few details to pay attention while sending patches, can you
please check the contribution guide:
http://dpdk.org/doc/guides/contributing/patches.html

Most important piece, patch requires a signed-off-by tag:
http://dpdk.org/doc/guides/contributing/patches.html#commit-messages-body


There is a DPDK IRC channel (#dpdk) on freenode irc servers, please feel
free to ask there if you have any questions.

Thanks,
ferruh

> 
> diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c
> index 55fd344..37ea7ac 100644
> --- a/drivers/net/i40e/i40e_ethdev_vf.c
> +++ b/drivers/net/i40e/i40e_ethdev_vf.c
> @@ -2014,6 +2014,11 @@ static int i40evf_dev_xstats_get(struct rte_eth_dev *dev,
>                 }
>  
>                 list = rte_zmalloc("i40evf_del_mac_buffer", len, 0);
> +               if (!list) {
> +                       PMD_DRV_LOG(ERR, "fail to alloc memory, abort execute command %s",
> +                               add ? "OP_ADD_ETHER_ADDRESS" : "OP_DEL_ETHER_ADDRESS");
> +                       return;
> +               }
>  
>                 for (i = begin; i < next_begin; i++) {
>                         addr = &dev->data->mac_addrs[i];
> 
> Best Regards
>