[dpdk-dev] [PATCH] bonding: fix segfault when primary slave set

[Declan Doherty]

On 26/07/2017 4:50 PM, Tomasz Kulasek wrote:
> rte_eth_bond_primary_set segfaults for invalid port. This patch moves
> devices check before use of internal data.
>
> Fixes: 4c42498d916d ("net/bonding: allow slaves to also be bonded devices")
>
> Signed-off-by: Tomasz Kulasek <tomaszx.kulasek at intel.com>
> ---
>  drivers/net/bonding/rte_eth_bond_api.c | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/bonding/rte_eth_bond_api.c b/drivers/net/bonding/rte_eth_bond_api.c
> index 824ab4f..de1d9e0 100644
> --- a/drivers/net/bonding/rte_eth_bond_api.c
> +++ b/drivers/net/bonding/rte_eth_bond_api.c
> @@ -514,15 +514,14 @@
>  {
>  	struct bond_dev_private *internals;
>
> -	internals =  rte_eth_devices[bonded_port_id].data->dev_private;
> -
>  	if (valid_bonded_port_id(bonded_port_id) != 0)
>  		return -1;
>
> +	internals = rte_eth_devices[bonded_port_id].data->dev_private;
> +
>  	if (valid_slave_port_id(slave_port_id, internals->mode) != 0)
>  		return -1;
>
> -
>  	internals->user_defined_primary_port = 1;
>  	internals->primary_port = slave_port_id;
>
>

Acked-by: Declan Doherty <declan.doherty at intel.com>