Update from https://crrev.com/316786

third_party/harfbuzz-ng/src/hb-common.cc

 /*
  * Copyright © 2009,2010  Red Hat, Inc.
  * Copyright © 2011,2012  Google, Inc.
  *
  *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
  * software and its documentation for any purpose, provided that the
  * above copyright notice and the following two paragraphs appear in
@@ skipping 217 matching lines @@
 
   void finish (void) { free ((void *) lang); }
 };
 
 
 /* Thread-safe lock-free language list */
 
 static hb_language_item_t *langs;
 
 #ifdef HB_USE_ATEXIT
-static inline
+static
 void free_langs (void)
 {
   while (langs) {
     hb_language_item_t *next = langs->next;
     langs->finish ();
     free (langs);
     langs = next;
   }
 }
 #endif
 
 static hb_language_item_t *
 lang_find_or_insert (const char *key)
 {
 retry:
   hb_language_item_t *first_lang = (hb_language_item_t *) hb_atomic_ptr_get (&langs);
 
   for (hb_language_item_t *lang = first_lang; lang; lang = lang->next)
     if (*lang == key)
       return lang;
 
   /* Not found; allocate one. */
   hb_language_item_t *lang = (hb_language_item_t *) calloc (1, sizeof (hb_language_item_t));
   if (unlikely (!lang))
     return NULL;
   lang->next = first_lang;
   *lang = key;
 
   if (!hb_atomic_ptr_cmpexch (&langs, first_lang, lang)) {
+    lang->finish ();
     free (lang);
     goto retry;
   }
 
 #ifdef HB_USE_ATEXIT
   if (!first_lang)
     atexit (free_langs); /* First person registers atexit() callback. */
 #endif
 
   return lang;
@@ skipping 60 matching lines @@
  * Since: 1.0
  **/
 hb_language_t
 hb_language_get_default (void)
 {
   static hb_language_t default_language = HB_LANGUAGE_INVALID;
 
   hb_language_t language = (hb_language_t) hb_atomic_ptr_get (&default_language);
   if (unlikely (language == HB_LANGUAGE_INVALID)) {
     language = hb_language_from_string (setlocale (LC_CTYPE, NULL), -1);
-    hb_atomic_ptr_cmpexch (&default_language, HB_LANGUAGE_INVALID, language);
+    (void) hb_atomic_ptr_cmpexch (&default_language, HB_LANGUAGE_INVALID, language);
   }
 
   return default_language;
 }
 
 
 /* hb_script_t */
 
 /**
  * hb_script_from_iso15924_tag:
@@ skipping 221 matching lines @@
  *
  * Since: 1.0
  **/
 hb_bool_t
 hb_version_atleast (unsigned int major,
                     unsigned int minor,
                     unsigned int micro)
 {
   return HB_VERSION_ATLEAST (major, minor, micro);
 }