From a2b97d056eb73aad6a2767a30215205ed69e422d Mon Sep 17 00:00:00 2001
From: John Haddon <jhaddon@cinesite.com>
Date: Tue, 20 Apr 2021 17:08:47 +0100
Subject: [PATCH] OSLCompiler : Check for write errors (#1360)

Fixes #1352

Signed-off-by: John Haddon <jhaddon@cinesite.com>
---
 src/liboslcomp/oslcomp.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/liboslcomp/oslcomp.cpp b/src/liboslcomp/oslcomp.cpp
index 00ca0c22c..9e2c51dda 100644
--- a/src/liboslcomp/oslcomp.cpp
+++ b/src/liboslcomp/oslcomp.cpp
@@ -490,6 +490,13 @@ OSLCompilerImpl::compile(string_view filename,
             write_oso_file(OIIO::Strutil::join(options, " "),
                            preprocess_result);
             OSL_DASSERT(m_osofile == nullptr);
+
+            oso_output.close();
+            if (!oso_output.good()) {
+                errorf(ustring(), 0, "Failed to write to \"%s\"",
+                       m_output_filename);
+                return false;
+            }
         }
 
         oslcompiler = nullptr;