diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_active.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_active.c b/drivers/gpu/drm/i915/i915_active.c index 584b247df9bc..13f304a29fc8 100644 --- a/drivers/gpu/drm/i915/i915_active.c +++ b/drivers/gpu/drm/i915/i915_active.c @@ -268,6 +268,8 @@ int i915_active_wait(struct i915_active *ref) int err; might_sleep(); + might_lock(&ref->mutex); + if (RB_EMPTY_ROOT(&ref->tree)) return 0; |