2 files changed, 8 insertions, 5 deletions
diff --git a/src/core/hle/service/nvflinger/nvflinger.cpp b/src/core/hle/service/nvflinger/nvflinger.cpp
index 9b382bf56..93057e800 100644
--- a/src/core/hle/service/nvflinger/nvflinger.cpp
+++ b/src/core/hle/service/nvflinger/nvflinger.cpp
@@ -22,6 +22,7 @@
 #include "core/hle/service/nvflinger/ui/graphic_buffer.h"
 #include "core/hle/service/vi/display/vi_display.h"
 #include "core/hle/service/vi/layer/vi_layer.h"
+#include "core/hle/service/vi/vi_results.h"
 #include "video_core/gpu.h"
 
 namespace Service::NVFlinger {
@@ -163,15 +164,15 @@ std::optional<u32> NVFlinger::FindBufferQueueId(u64 display_id, u64 layer_id) {
     return layer->GetBinderId();
 }
 
-Kernel::KReadableEvent* NVFlinger::FindVsyncEvent(u64 display_id) {
+ResultVal<Kernel::KReadableEvent*> NVFlinger::FindVsyncEvent(u64 display_id) {
     const auto lock_guard = Lock();
     auto* const display = FindDisplay(display_id);
 
     if (display == nullptr) {
-        return nullptr;
+        return VI::ResultNotFound;
     }
 
-    return &display->GetVSyncEvent();
+    return display->GetVSyncEvent();
 }
 
 VI::Display* NVFlinger::FindDisplay(u64 display_id) {
diff --git a/src/core/hle/service/nvflinger/nvflinger.h b/src/core/hle/service/nvflinger/nvflinger.h
index 044ac6ac8..3bbe5d92b 100644
--- a/src/core/hle/service/nvflinger/nvflinger.h
+++ b/src/core/hle/service/nvflinger/nvflinger.h
@@ -11,6 +11,7 @@
 #include <vector>
 
 #include "common/common_types.h"
+#include "core/hle/result.h"
 #include "core/hle/service/kernel_helpers.h"
 
 namespace Common {
@@ -71,8 +72,9 @@ public:
 
     /// Gets the vsync event for the specified display.
     ///
-    /// If an invalid display ID is provided, then nullptr is returned.
-    [[nodiscard]] Kernel::KReadableEvent* FindVsyncEvent(u64 display_id);
+    /// If an invalid display ID is provided, then VI::ResultNotFound is returned.
+    /// If the vsync event has already been retrieved, then VI::ResultPermissionDenied is returned.
+    [[nodiscard]] ResultVal<Kernel::KReadableEvent*> FindVsyncEvent(u64 display_id);
 
     /// Performs a composition request to the emulated nvidia GPU and triggers the vsync events when
     /// finished.