diff --git a/services/audioflinger/IAfThread.h b/services/audioflinger/IAfThread.h
index 4b6ab89..c7444ad 100644
--- a/services/audioflinger/IAfThread.h
+++ b/services/audioflinger/IAfThread.h
@@ -116,9 +116,11 @@
             const sp<AudioIoDescriptor>& ioDesc,
             pid_t pid = 0) EXCLUDES_AudioFlinger_ClientMutex = 0;
     virtual void onNonOffloadableGlobalEffectEnable() EXCLUDES_AudioFlinger_Mutex = 0;
-    virtual void onSupportedLatencyModesChanged(
-            audio_io_handle_t output, const std::vector<audio_latency_mode_t>& modes)
+    virtual void onSupportedLatencyModesChanged(audio_io_handle_t output,
+                                                const std::vector<audio_latency_mode_t>& modes)
             EXCLUDES_AudioFlinger_ClientMutex = 0;
+
+    virtual void onHardError(std::set<audio_port_handle_t>& trackPortIds) = 0;
 };
 
 class IAfThreadBase : public virtual RefBase {