buffer_queue: Protect queue_sequence list access with a mutex

fixes a data race as this is an unprotected variable manipulated by multiple threads

1 files changed, 4 insertions, 2 deletions

diff --git a/src/core/hle/service/nvflinger/buffer_queue.h b/src/core/hle/service/nvflinger/buffer_queue.h
index a2f60d9eb..ad7469277 100644
--- a/src/core/hle/service/nvflinger/buffer_queue.h
+++ b/src/core/hle/service/nvflinger/buffer_queue.h
@@ -129,8 +129,10 @@ private:
     std::list<u32> queue_sequence;
     Kernel::EventPair buffer_wait_event;
 
-    std::mutex queue_mutex;
-    std::condition_variable condition;
+    std::mutex free_buffers_mutex;
+    std::condition_variable free_buffers_condition;
+
+    std::mutex queue_sequence_mutex;
 };
 
 } // namespace Service::NVFlinger