hwc3: fix null dereference of outDimmingStage in validateDisplay()

We should not pass nullptr to outDimmingStage parameter to
validateDisplay() since it will eventually be dereferenced inside
validateDisplay().

Bug: 222153332
Test: build
Change-Id: I510eb3ef5525cb148cbc9bad116acbadc2fa0f5f

1 files changed, 2 insertions, 1 deletions

diff --git a/hwc3/ComposerClient.cpp b/hwc3/ComposerClient.cpp
index 6997087..b576b68 100644
--- a/hwc3/ComposerClient.cpp
+++ b/hwc3/ComposerClient.cpp
@@ -553,9 +553,10 @@ void ComposerClient::destroyResources() {
             std::vector<int64_t> requestedLayers;
             std::vector<int32_t> requestMasks;
             ClientTargetProperty clientTargetProperty;
+            DimmingStage dimmingStage;
             mHal->validateDisplay(display, &changedLayers, &compositionTypes, &displayRequestMask,
                                   &requestedLayers, &requestMasks, &clientTargetProperty,
-                                  nullptr /* outDimmingStage */);
+                                  &dimmingStage);
             mHal->acceptDisplayChanges(display);
 
             ndk::ScopedFileDescriptor presentFence;