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From: Tiwei Bie <tiwei.bie@intel.com>
To: Yunjian Wang <wangyunjian@huawei.com>
Cc: dev@dpdk.org, maxime.coquelin@redhat.com, zhihong.wang@intel.com,
	xudingke@huawei.com, stable@dpdk.org
Subject: Re: [dpdk-dev] [PATCH] net/vhost: fix return value of vhost creates not checked
Date: Mon, 16 Dec 2019 13:33:15 +0800	[thread overview]
Message-ID: <20191216053315.GA133010@___> (raw)
In-Reply-To: <1576458359-13848-1-git-send-email-wangyunjian@huawei.com>

On Mon, Dec 16, 2019 at 09:05:59AM +0800, Yunjian Wang wrote:
> The function eth_dev_vhost_create() could return errors,
> the return value need to be checked.
> 
> Fixes: ee584e9710b9 ("vhost: add driver on top of the library")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
> ---
>  drivers/net/vhost/rte_eth_vhost.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/vhost/rte_eth_vhost.c b/drivers/net/vhost/rte_eth_vhost.c
> index 46f01a7..7e4faf2 100644
> --- a/drivers/net/vhost/rte_eth_vhost.c
> +++ b/drivers/net/vhost/rte_eth_vhost.c
> @@ -1455,8 +1455,10 @@ struct vhost_xstats_name_off {
>  	if (dev->device.numa_node == SOCKET_ID_ANY)
>  		dev->device.numa_node = rte_socket_id();
>  
> -	eth_dev_vhost_create(dev, iface_name, queues, dev->device.numa_node,
> -		flags, disable_flags);
> +	ret = eth_dev_vhost_create(dev, iface_name, queues,
> +			dev->device.numa_node, flags, disable_flags);
> +	if (ret == -1)
> +		VHOST_LOG(ERR, "Failed to create %s", name);

This will set "ret" to port id on success,
but we shouldn't return port id in probe.

>  
>  out_free:
>  	rte_kvargs_free(kvlist);
> -- 
> 1.8.3.1
> 
> 

  reply	other threads:[~2019-12-16  5:33 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-16  1:05 Yunjian Wang
2019-12-16  5:33 ` Tiwei Bie [this message]
2019-12-16  6:38   ` wangyunjian
2019-12-17  1:21     ` Tiwei Bie

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