Re: [dpdk-dev] [dpdk-stable] [PATCH v3 1/2] eal: fix memory leak when removing event_cb

[David Marchand <david.marchand@redhat.com>]

On Thu, Jul 2, 2020 at 1:47 PM wangyunjian <wangyunjian@huawei.com> wrote:
>
> From: Yunjian Wang <wangyunjian@huawei.com>
>
> The event_cb->dev_name is not freed when freeing event_cb,
> and this causes a memory leak.
>
> Fixes: a753e53d517b ("eal: add device event monitor framework")
> Cc: stable@dpdk.org
>
> Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
> ---
>  lib/librte_eal/common/eal_common_dev.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/lib/librte_eal/common/eal_common_dev.c b/lib/librte_eal/common/eal_common_dev.c
> index 9e4f09d..4cfdb80 100644
> --- a/lib/librte_eal/common/eal_common_dev.c
> +++ b/lib/librte_eal/common/eal_common_dev.c
> @@ -526,6 +526,8 @@ static int cmp_dev_name(const struct rte_device *dev, const void *_name)
>                  */
>                 if (event_cb->active == 0) {
>                         TAILQ_REMOVE(&dev_event_cbs, event_cb, next);
> +                       if (event_cb->dev_name)
> +                               free(event_cb->dev_name);

No need for the check, free handles a NULL pointer just fine.

Please, could you update your series/patches status in patchwork?
I am a bit lost at what is superseded or not.


Thanks.

-- 
David Marchand