diff --git a/media/libaudioclient/AudioTrack.cpp b/media/libaudioclient/AudioTrack.cpp
index bec6b10..36f8e10 100644
--- a/media/libaudioclient/AudioTrack.cpp
+++ b/media/libaudioclient/AudioTrack.cpp
@@ -2448,6 +2448,7 @@
     sp<IAudioTrackCallback> callback = mCallback.promote();
     if (!callback) {
         mCallback = nullptr;
+        mLock.unlock();
         return NS_NEVER;
     }
     if (mAwaitBoost) {