2014-04-15  Marek Polacek  <polacek@redhat.com>
	    Jakub Jelinek  <jakub@redhat.com>

	* gcov.c (process_file): Restore functions if something fails.

--- gcc/gcov.c	(revision 208861)
+++ gcc/gcov.c	(working copy)
@@ -521,16 +521,23 @@
 
   create_file_names (file_name);
   if (read_graph_file ())
-    return;
+    {
+      functions = old_functions;
+      return;
+    }
 
   if (!functions)
     {
+      functions = old_functions;
       fnotice (stderr, "%s:no functions found\n", bbg_file_name);
       return;
     }
 
   if (read_count_file ())
-    return;
+    {
+      functions = old_functions;
+      return;
+    }
 
   for (fn_p = NULL, fn = functions; fn; fn_p = fn, fn = fn->next)
     solve_flow_graph (fn);