diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_request.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_request.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c index 7cefff8b2c5e..91147a6b68b5 100644 --- a/drivers/gpu/drm/i915/i915_request.c +++ b/drivers/gpu/drm/i915/i915_request.c @@ -1087,7 +1087,8 @@ __i915_request_add_to_timeline(struct i915_request *rq) * precludes optimising to use semaphores serialisation of a single * timeline across engines. */ - prev = rcu_dereference_protected(timeline->last_request.request, 1); + prev = rcu_dereference_protected(timeline->last_request.request, + lockdep_is_held(&timeline->mutex)); if (prev && !i915_request_completed(prev)) { if (is_power_of_2(prev->engine->mask | rq->engine->mask)) i915_sw_fence_await_sw_fence(&rq->submit, |