Re: [dpdk-dev] [PATCH] net/bnxt: fix a segfault during close

[Ajit Khaparde <ajit.khaparde@broadcom.com>]

On Fri, May 22, 2020 at 2:27 PM Ajit Khaparde <ajit.khaparde@broadcom.com>
wrote:

> We are freeing flow_stats a little early. This results in a
> segfault when the driver accesses the members during cleanup.
> Move the call to bnxt_free_flow_stats_info() to prevent this.
>
> Fixes: 02a95625fe9c ("net/bnxt: add flow stats in extended stats")
> Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
>
Patch applied to dpdk-next-net-brcm.


> ---
>  drivers/net/bnxt/bnxt_ethdev.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/net/bnxt/bnxt_ethdev.c
> b/drivers/net/bnxt/bnxt_ethdev.c
> index e63578109..e8b4c058a 100644
> --- a/drivers/net/bnxt/bnxt_ethdev.c
> +++ b/drivers/net/bnxt/bnxt_ethdev.c
> @@ -221,8 +221,6 @@ static void bnxt_free_cos_queues(struct bnxt *bp)
>
>  static void bnxt_free_mem(struct bnxt *bp, bool reconfig)
>  {
> -       bnxt_free_flow_stats_info(bp);
> -
>         bnxt_free_filter_mem(bp);
>         bnxt_free_vnic_attributes(bp);
>         bnxt_free_vnic_mem(bp);
> @@ -5613,6 +5611,7 @@ bnxt_uninit_resources(struct bnxt *bp, bool
> reconfig_dev)
>         bnxt_uninit_ctx_mem(bp);
>
>         bnxt_uninit_locks(bp);
> +       bnxt_free_flow_stats_info(bp);
>         rte_free(bp->ptp_cfg);
>         bp->ptp_cfg = NULL;
>         return rc;
> --
> 2.21.1 (Apple Git-122.3)
>
>