Call release_input_file only if not NULL

	* lto-plugin.c (claim_file_handler): Call release_input_file only
	if it is not NULL.

From-SVN: r220224

lto-plugin/ChangeLog

 2015-01-28  H.J. Lu  <hongjiu.lu@intel.com>
 
+	* lto-plugin.c (claim_file_handler): Call release_input_file only
+	if it is not NULL.
+
+2015-01-28  H.J. Lu  <hongjiu.lu@intel.com>
+
 	PR lto/64837
 	* lto-plugin.c (release_input_file): New.
 	(claim_file_handler): Call release_input_file.

lto-plugin/lto-plugin.c

@@ -1007,7 +1007,8 @@ claim_file_handler (const struct ld_plugin_input_file *file, int *claimed)
   if (obj.objfile)
     simple_object_release_read (obj.objfile);
 
-  release_input_file (file);
+  if (release_input_file)
+    release_input_file (file);
 
   return LDPS_OK;
 }