diff --git a/include/llvm/DebugInfo/PDB/IPDBSession.h b/include/llvm/DebugInfo/PDB/IPDBSession.h
index 3d2c37eff2e..15e97ac198e 100644
--- a/include/llvm/DebugInfo/PDB/IPDBSession.h
+++ b/include/llvm/DebugInfo/PDB/IPDBSession.h
@@ -40,7 +40,7 @@ public:
     T *ConcreteSymbol = dyn_cast<T>(Symbol.get());
     if (!ConcreteSymbol)
       return nullptr;
-    Symbol.release();
+    (void)Symbol.release();
     return std::unique_ptr<T>(ConcreteSymbol);
   }
 
diff --git a/lib/Bitcode/Reader/BitReader.cpp b/lib/Bitcode/Reader/BitReader.cpp
index 63854307b7b..f64785b3ad9 100644
--- a/lib/Bitcode/Reader/BitReader.cpp
+++ b/lib/Bitcode/Reader/BitReader.cpp
@@ -84,7 +84,9 @@ LLVMBool LLVMGetBitcodeModuleInContext(LLVMContextRef ContextRef,
   std::unique_ptr<MemoryBuffer> Owner(unwrap(MemBuf));
   Expected<std::unique_ptr<Module>> ModuleOrErr =
       getOwningLazyBitcodeModule(std::move(Owner), Ctx);
-  Owner.release();
+  // Release the buffer if we didn't take ownership of it since we never owned
+  // it anyway.
+  (void)Owner.release();
 
   if (Error Err = ModuleOrErr.takeError()) {
     std::string Message;