Index: lld/trunk/COFF/Driver.cpp
===================================================================
--- lld/trunk/COFF/Driver.cpp
+++ lld/trunk/COFF/Driver.cpp
@@ -184,8 +184,10 @@
     if (wholeArchive) {
       std::unique_ptr<Archive> file =
           CHECK(Archive::create(mbref), filename + ": failed to parse archive");
+      Archive *archive = file.get();
+      make<std::unique_ptr<Archive>>(std::move(file)); // take ownership
 
-      for (MemoryBufferRef m : getArchiveMembers(file.get()))
+      for (MemoryBufferRef m : getArchiveMembers(archive))
         addArchiveBuffer(m, "<whole-archive>", filename, 0);
       return;
     }
Index: lld/trunk/test/COFF/thin-archive.s
===================================================================
--- lld/trunk/test/COFF/thin-archive.s
+++ lld/trunk/test/COFF/thin-archive.s
@@ -11,6 +11,8 @@
 # RUN:     FileCheck --allow-empty %s
 # RUN: lld-link /entry:main %t.main.obj %t_thin.lib /out:%t.exe 2>&1 | \
 # RUN:     FileCheck --allow-empty %s
+# RUN: lld-link /entry:main %t.main.obj /wholearchive:%t_thin.lib /out:%t.exe 2>&1 | \
+# RUN:     FileCheck --allow-empty %s
 
 # RUN: rm %t.lib.obj
 # RUN: lld-link /entry:main %t.main.obj %t.lib /out:%t.exe 2>&1 | \