You really need to hold the reservation here or all kinds of funny
things can happen between grabbing the dependencies and inserting the
new fences.
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
Cc: "Christian König" <christian.koenig@xxxxxxx>
Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
Cc: Luben Tuikov <luben.tuikov@xxxxxxx>
Cc: Andrey Grodzovsky <andrey.grodzovsky@xxxxxxx>
Cc: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: Jack Zhang <Jack.Zhang1@xxxxxxx>
---
drivers/gpu/drm/scheduler/sched_main.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c
index db326a1ebf3c..67eca88e070e 100644
--- a/drivers/gpu/drm/scheduler/sched_main.c
+++ b/drivers/gpu/drm/scheduler/sched_main.c
@@ -708,6 +708,8 @@ int drm_sched_job_await_implicit(struct drm_sched_job *job,
struct dma_fence **fences;
unsigned int i, fence_count;
+ dma_resv_assert_held(obj->resv);
+
if (!write) {
struct dma_fence *fence = dma_resv_get_excl_unlocked(obj->resv);
--
2.32.0
