drm/sched: Avoid infinite waits in the drm_sched_entity_destroy() path
If we don't initialize the entity to idle and the entity is never
scheduled before being destroyed we end up with an infinite wait in the
destroy path.
v2:
- Add Steven's R-b
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/393486/
diff --git a/drivers/gpu/drm/scheduler/sched_entity.c b/drivers/gpu/drm/scheduler/sched_entity.c
index 1463801..f8ec277 100644
--- a/drivers/gpu/drm/scheduler/sched_entity.c
+++ b/drivers/gpu/drm/scheduler/sched_entity.c
@@ -73,6 +73,9 @@ int drm_sched_entity_init(struct drm_sched_entity *entity,
init_completion(&entity->entity_idle);
+ /* We start in an idle state. */
+ complete(&entity->entity_idle);
+
spin_lock_init(&entity->rq_lock);
spsc_queue_init(&entity->job_queue);
