diff --git a/llvm/lib/Object/MachOObjectFile.cpp b/llvm/lib/Object/MachOObjectFile.cpp
index dc0f9ff..a930117 100644
--- a/llvm/lib/Object/MachOObjectFile.cpp
+++ b/llvm/lib/Object/MachOObjectFile.cpp
@@ -1582,25 +1582,25 @@
   }
 }
 
-ObjectFile *ObjectFile::createMachOObjectFile(MemoryBuffer *Buffer) {
+ErrorOr<ObjectFile *> ObjectFile::createMachOObjectFile(MemoryBuffer *Buffer) {
   StringRef Magic = Buffer->getBuffer().slice(0, 4);
-  error_code ec;
-  OwningPtr<ObjectFile> Ret;
+  error_code EC;
+  OwningPtr<MachOObjectFile> Ret;
   if (Magic == "\xFE\xED\xFA\xCE")
-    Ret.reset(new MachOObjectFile(Buffer, false, false, ec));
+    Ret.reset(new MachOObjectFile(Buffer, false, false, EC));
   else if (Magic == "\xCE\xFA\xED\xFE")
-    Ret.reset(new MachOObjectFile(Buffer, true, false, ec));
+    Ret.reset(new MachOObjectFile(Buffer, true, false, EC));
   else if (Magic == "\xFE\xED\xFA\xCF")
-    Ret.reset(new MachOObjectFile(Buffer, false, true, ec));
+    Ret.reset(new MachOObjectFile(Buffer, false, true, EC));
   else if (Magic == "\xCF\xFA\xED\xFE")
-    Ret.reset(new MachOObjectFile(Buffer, true, true, ec));
+    Ret.reset(new MachOObjectFile(Buffer, true, true, EC));
   else {
     delete Buffer;
-    return NULL;
+    return object_error::parse_failed;
   }
 
-  if (ec)
-    return NULL;
+  if (EC)
+    return EC;
   return Ret.take();
 }