commit 5dcd75d46c5e4eda82c42660eea56f0d923acd53
author Brian Johnson <hibrian@google.com> Tue Aug 15 09:36:37 2023 -0700
committer Huihong Luo <huisinro@google.com> Thu Sep 21 10:44:18 2023 -0700
tree 4361b8ed292282f70c411e458a9f85fabc997bdf
parent c79a756a21be45c13d5578f3c14e7b021cc9927e

SF: Propagate display hotplug errors

Add support for SurfaceFlinger to handle display connection
errors and propagate any error code on hotplug event up the
stack.

Bug: 241286153
Test: manual
Change-Id: I88afeb4f61b13714a81138180db0762cf3ae4ab0

libs/gui/DisplayEventDispatcher.cpp

diff --git a/libs/gui/DisplayEventDispatcher.cpp b/libs/gui/DisplayEventDispatcher.cpp
index 8a88377..5dd058c 100644
--- a/libs/gui/DisplayEventDispatcher.cpp
+++ b/libs/gui/DisplayEventDispatcher.cpp
@@ -173,7 +173,13 @@
                     *outVsyncEventData = ev.vsync.vsyncData;
                     break;
                 case DisplayEventReceiver::DISPLAY_EVENT_HOTPLUG:
-                    dispatchHotplug(ev.header.timestamp, ev.header.displayId, ev.hotplug.connected);
+                    if (ev.hotplug.connectionError == 0) {
+                        dispatchHotplug(ev.header.timestamp, ev.header.displayId,
+                                        ev.hotplug.connected);
+                    } else {
+                        dispatchHotplugConnectionError(ev.header.timestamp,
+                                                       ev.hotplug.connectionError);
+                    }
                     break;
                 case DisplayEventReceiver::DISPLAY_EVENT_MODE_CHANGE:
                     dispatchModeChanged(ev.header.timestamp, ev.header.displayId,