[gnome-desktop] gnome-languages: Return early if the locale didn't parse correctly

[Rui Matos <rtcm src gnome org>]

commit 571db6a870f3d83013d321745ac4e997f853a6c6
Author: Rui Matos <tiagomatos gmail com>
Date:   Fri Jan 8 14:59:26 2016 +0100

    gnome-languages: Return early if the locale didn't parse correctly
    
    There's no point in going further if we can't parse the locale and
    we can prevent crashes in some corner cases this way.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=760304

 libgnome-desktop/gnome-languages.c |   16 ++++++++++------
 1 files changed, 10 insertions(+), 6 deletions(-)
---
diff --git a/libgnome-desktop/gnome-languages.c b/libgnome-desktop/gnome-languages.c
index 2ec97a5..d2d88ea 100644
--- a/libgnome-desktop/gnome-languages.c
+++ b/libgnome-desktop/gnome-languages.c
@@ -391,6 +391,7 @@ add_locale (const char *language_name,
         GnomeLocale *old_locale;
         char      *name;
         gboolean   is_utf8 = FALSE;
+        gboolean   valid = FALSE;
 
         g_return_val_if_fail (language_name != NULL, FALSE);
         g_return_val_if_fail (*language_name != '\0', FALSE);
@@ -426,13 +427,16 @@ add_locale (const char *language_name,
         }
 
         locale = g_new0 (GnomeLocale, 1);
-        gnome_parse_locale (name,
-                            &locale->language_code,
-                            &locale->territory_code,
-                            &locale->codeset,
-                            &locale->modifier);
+        valid = gnome_parse_locale (name,
+                                    &locale->language_code,
+                                    &locale->territory_code,
+                                    &locale->codeset,
+                                    &locale->modifier);
         g_free (name);
-        name = NULL;
+        if (!valid) {
+                gnome_locale_free (locale);
+                return FALSE;
+        }
 
         locale->id = construct_language_name (locale->language_code, locale->territory_code,
                                               NULL, locale->modifier);