From c851e438d06a5d977f9effb406d621e9f07fecd0 Mon Sep 17 00:00:00 2001
From: Jason Lian <jamarshon@fb.com>
Date: Mon, 29 Jul 2019 12:47:59 -0700
Subject: [PATCH] more

---
 torchaudio/torch_sox.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/torchaudio/torch_sox.cpp b/torchaudio/torch_sox.cpp
index 92241dcbee..b6cc4bbb3b 100644
--- a/torchaudio/torch_sox.cpp
+++ b/torchaudio/torch_sox.cpp
@@ -18,7 +18,9 @@ struct SoxDescriptor {
   SoxDescriptor& operator=(const SoxDescriptor& other) = delete;
   SoxDescriptor& operator=(SoxDescriptor&& other) = delete;
   ~SoxDescriptor() {
-    sox_close(fd_);
+    if (fd_ != nullptr) {
+      sox_close(fd_);
+    }
   }
   sox_format_t* operator->() noexcept {
     return fd_;