[mutter] wayland/keyboard: Cleanup xkb state managing

[Jonas Ådahl <jadahl src gnome org>]

commit d639c28e3b87ffea3745ef2c834f0d241c9238fc
Author: Jonas Ådahl <jadahl gmail com>
Date:   Wed Sep 21 11:24:47 2016 +0800

    wayland/keyboard: Cleanup xkb state managing
    
    Initialize and cleanup properly in a _init()/_destroy() function pair.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=771646

 src/wayland/meta-wayland-keyboard.c |   15 ++++++++++++---
 1 files changed, 12 insertions(+), 3 deletions(-)
---
diff --git a/src/wayland/meta-wayland-keyboard.c b/src/wayland/meta-wayland-keyboard.c
index fd32483..6e85964 100644
--- a/src/wayland/meta-wayland-keyboard.c
+++ b/src/wayland/meta-wayland-keyboard.c
@@ -611,8 +611,6 @@ meta_wayland_keyboard_enable (MetaWaylandKeyboard *keyboard)
   wl_list_init (&keyboard->resource_list);
   wl_list_init (&keyboard->focus_resource_list);
 
-  keyboard->xkb_info.keymap_fd = -1;
-
   keyboard->grab = &keyboard->default_grab;
 
   keyboard->settings = g_settings_new ("org.gnome.desktop.peripherals.keyboard");
@@ -641,6 +639,12 @@ meta_wayland_keyboard_enable (MetaWaylandKeyboard *keyboard)
 }
 
 static void
+meta_wayland_xkb_info_init (MetaWaylandXkbInfo *xkb_info)
+{
+  xkb_info->keymap_fd = -1;
+}
+
+static void
 meta_wayland_xkb_info_destroy (MetaWaylandXkbInfo *xkb_info)
 {
   g_clear_pointer (&xkb_info->keymap, xkb_keymap_unref);
@@ -652,7 +656,10 @@ meta_wayland_xkb_info_destroy (MetaWaylandXkbInfo *xkb_info)
       xkb_info->keymap_area = NULL;
     }
   if (xkb_info->keymap_fd >= 0)
-    close (xkb_info->keymap_fd);
+    {
+      close (xkb_info->keymap_fd);
+      xkb_info->keymap_fd = -1;
+    }
 }
 
 void
@@ -957,6 +964,8 @@ meta_wayland_keyboard_end_grab (MetaWaylandKeyboard *keyboard)
 static void
 meta_wayland_keyboard_init (MetaWaylandKeyboard *keyboard)
 {
+  meta_wayland_xkb_info_init (&keyboard->xkb_info);
+
   keyboard->default_grab.interface = &default_keyboard_grab_interface;
   keyboard->default_grab.keyboard = keyboard;