On 9/11/21 8:51 AM, Ding Hui wrote:
> The commit ec29d0ac29be ("scsi: iscsi: Fix conn use after free during
> resets") move member ehwait from conn to session, but left init ehwait
> in iscsi_conn_setup().
>
> Although a session can only have 1 conn currently, it is better to
> do init ehwait in iscsi_session_setup() to prevent reinit by mistake,
> also in case we can handle multiple conns in the future.
>
> Fixes: ec29d0ac29be ("scsi: iscsi: Fix conn use after free during resets")
> Signed-off-by: Ding Hui <[email protected]>
> ---
> v2:
> update commit log
>
> drivers/scsi/libiscsi.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
> index 4683c183e9d4..712a45368385 100644
> --- a/drivers/scsi/libiscsi.c
> +++ b/drivers/scsi/libiscsi.c
> @@ -2947,6 +2947,7 @@ iscsi_session_setup(struct iscsi_transport *iscsit,
> struct Scsi_Host *shost,
> session->tmf_state = TMF_INITIAL;
> timer_setup(&session->tmf_timer, iscsi_tmf_timedout, 0);
> mutex_init(&session->eh_mutex);
> + init_waitqueue_head(&session->ehwait);
>
> spin_lock_init(&session->frwd_lock);
> spin_lock_init(&session->back_lock);
> @@ -3074,8 +3075,6 @@ iscsi_conn_setup(struct iscsi_cls_session *cls_session,
> int dd_size,
> goto login_task_data_alloc_fail;
> conn->login_task->data = conn->data = data;
>
> - init_waitqueue_head(&session->ehwait);
> -
> return cls_conn;
>
> login_task_data_alloc_fail:
>
Reviewed-by: Mike Christie <[email protected]>
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