[PATCH 03/11] drbd_transport_rdma: put kref for cm in dtr_path_established in error path

[Philipp Reisner]

Hello Dongsheng,

Please add more information why you think this change fixes a bug.
Have you experienced a leak of cm structs?
We got a RDMA_CM_EVENT_ESTABLISHED event. Even if DRBD does not do
anything with this cm, we sill expect a RDMA_CM_EVENT_DISCONNECTED in
the future. Is a problem in the handling of the disconnect?

best regards,
 Philipp

On Mon, Jun 24, 2024 at 9:28 AM zhengbing.huang
<zhengbing.huang at easystack.cn> wrote:
>
> From: Dongsheng Yang <dongsheng.yang at easystack.cn>
>
> Signed-off-by: Dongsheng Yang <dongsheng.yang at easystack.cn>
> ---
>  drbd/drbd_transport_rdma.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drbd/drbd_transport_rdma.c b/drbd/drbd_transport_rdma.c
> index cfbae0e78..eccd0c6ce 100644
> --- a/drbd/drbd_transport_rdma.c
> +++ b/drbd/drbd_transport_rdma.c
> @@ -922,6 +922,7 @@ static void dtr_path_established(struct dtr_cm *cm)
>                         atomic_set(&cs->active_state, PCS_INACTIVE);
>                         wake_up(&cs->wq);
>                 }
> +               kref_put(&cm->kref, dtr_destroy_cm);
>                 return;
>         }
>
> --
> 2.27.0
>