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wayland-keyboard: Disconnect from backend signals on release

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Otherwise we'll access freed memory in the handlers.

The wayland keyboard is released when the seat loses the keyboard
capability which happens when leaving the VT so if there are keymap
changes while switched away from the VT we would crash.

https://bugzilla.gnome.org/show_bug.cgi?id=747263
This commit is contained in:
Rui Matos 2015-04-02 18:57:16 +02:00
parent f3fecd478d
commit 4aa74af694
1 changed files with 5 additions and 0 deletions
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5
src/wayland/meta-wayland-keyboard.c
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@ -411,6 +411,11 @@ meta_wayland_xkb_info_destroy (MetaWaylandXkbInfo *xkb_info)
void
meta_wayland_keyboard_release (MetaWaylandKeyboard *keyboard)
{
MetaBackend *backend = meta_get_backend ();
g_signal_handlers_disconnect_by_func (backend, on_keymap_changed, keyboard);
g_signal_handlers_disconnect_by_func (backend, on_keymap_layout_group_changed, keyboard);
meta_wayland_keyboard_set_focus (keyboard, NULL);
meta_wayland_xkb_info_destroy (&keyboard->xkb_info);