From 1acb03b5797f74cecdfebcfd7510965111b55dad Mon Sep 17 00:00:00 2001
From: SachinVin <26602104+SachinVin@users.noreply.github.com>
Date: Wed, 11 Oct 2023 01:22:57 +0530
Subject: [PATCH] dsp_dsp.cpp: fix registering Interrupt handler on loading
 savestates (#7055)

---
 src/audio_core/hle/hle.cpp           |  3 +--
 src/core/hle/service/dsp/dsp_dsp.cpp | 12 ++++++------
 2 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/src/audio_core/hle/hle.cpp b/src/audio_core/hle/hle.cpp
index 6b331b2774..ecb2fb81c3 100644
--- a/src/audio_core/hle/hle.cpp
+++ b/src/audio_core/hle/hle.cpp
@@ -114,8 +114,7 @@ private:
         ar& dsp_memory.raw_memory;
         ar& sources;
         ar& mixers;
-        // interrupt_handler is function pointer and cant be serialised, fortunately though, it
-        // should be registerd before the game has started
+        // interrupt_handler is reregistered when loading state from DSP_DSP
     }
     friend class boost::serialization::access;
 };
diff --git a/src/core/hle/service/dsp/dsp_dsp.cpp b/src/core/hle/service/dsp/dsp_dsp.cpp
index fd28925a02..54cb580712 100644
--- a/src/core/hle/service/dsp/dsp_dsp.cpp
+++ b/src/core/hle/service/dsp/dsp_dsp.cpp
@@ -394,6 +394,12 @@ DSP_DSP::DSP_DSP(Core::System& system)
 
     semaphore_event->SetHLENotifier(
         [this]() { this->system.DSP().SetSemaphore(preset_semaphore); });
+
+    system.DSP().SetInterruptHandler([dsp_ref = this](InterruptType type, DspPipe pipe) {
+        if (dsp_ref) {
+            dsp_ref->SignalInterrupt(type, pipe);
+        }
+    });
 }
 
 DSP_DSP::~DSP_DSP() {
@@ -405,12 +411,6 @@ void InstallInterfaces(Core::System& system) {
     auto& service_manager = system.ServiceManager();
     auto dsp = std::make_shared<DSP_DSP>(system);
     dsp->InstallAsService(service_manager);
-    system.DSP().SetInterruptHandler(
-        [dsp_ref = std::weak_ptr<DSP_DSP>(dsp)](InterruptType type, DspPipe pipe) {
-            if (auto locked = dsp_ref.lock()) {
-                locked->SignalInterrupt(type, pipe);
-            }
-        });
 }
 
 } // namespace Service::DSP