Add a lock around the SPI bus

This seems to have been the cause of recurring deadlocks that have been
difficult to repo.

1 files changed, 0 insertions, 5 deletions

diff --git a/src/audio/fatfs_audio_input.cpp b/src/audio/fatfs_audio_input.cpp
index 6039ff9d..54630a98 100644
--- a/src/audio/fatfs_audio_input.cpp
+++ b/src/audio/fatfs_audio_input.cpp
@@ -91,12 +91,7 @@ auto FatfsAudioInput::NextStream() -> std::shared_ptr<codecs::IStream> {
     {
       std::lock_guard<std::mutex> guard{new_stream_mutex_};
       // If the path is a future, then wait for it to complete.
-      // TODO(jacqueline): We should really make some kind of
-      // FreeRTOS-integrated way to block a task whilst awaiting a future.
       if (pending_path_) {
-        while (!pending_path_->Finished()) {
-          vTaskDelay(pdMS_TO_TICKS(100));
-        }
         auto res = pending_path_->Result();
         pending_path_.reset();