[gnome-control-center/gnome-41] keyboard-item: fix leak on unused CcKeyCombo

[Robert Ancell <rancell src gnome org>]

commit e7872ed11daa8e886e5ea373e4d4086b9b7e304c
Author: Victor Toso <victortoso redhat com>
Date:   Tue Oct 12 14:02:06 2021 +0200

    keyboard-item: fix leak on unused CcKeyCombo
    
    ==31571== 288 bytes in 24 blocks are definitely lost in loss record 18,138 of 19,290
    ==31571==    at 0x484086F: malloc (vg_replace_malloc.c:380)
    ==31571==    by 0x4AF77A8: g_malloc (gmem.c:106)
    ==31571==    by 0x4A4119: variant_get_key_combos (cc-keyboard-item.c:475)
    ==31571==    by 0x4A41FD: settings_get_key_combos (cc-keyboard-item.c:498)
    ==31571==    by 0x4A46BE: cc_keyboard_item_load_from_gsettings (cc-keyboard-item.c:574)
    ==31571==    by 0x4A5BBB: append_section (cc-keyboard-manager.c:315)
    ==31571==    by 0x4A605D: append_sections_from_file (cc-keyboard-manager.c:431)
    ==31571==    by 0x4A6766: reload_sections (cc-keyboard-manager.c:568)
    ==31571==    by 0x4A6D68: cc_keyboard_manager_load_shortcuts (cc-keyboard-manager.c:707)
    ==31571==    by 0x4A2FA4: cc_keyboard_shortcut_dialog_init (cc-keyboard-shortcut-dialog.c:841)
    ==31571==    by 0x4A7A288: g_type_create_instance (gtype.c:1929)
    ==31571==    by 0x4A61CAC: g_object_new_internal (gobject.c:1945)

 panels/keyboard/cc-keyboard-item.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/panels/keyboard/cc-keyboard-item.c b/panels/keyboard/cc-keyboard-item.c
index 2f7cdf753..1d17b10bb 100644
--- a/panels/keyboard/cc-keyboard-item.c
+++ b/panels/keyboard/cc-keyboard-item.c
@@ -472,12 +472,12 @@ variant_get_key_combos (GVariant *variant)
 
   for (str = bindings; *str; str++)
     {
-      CcKeyCombo *combo = g_new (CcKeyCombo, 1);
+      g_autofree CcKeyCombo *combo = g_new (CcKeyCombo, 1);
 
       binding_from_string (*str, combo);
 
       if (combo->keyval != 0 || combo->keycode != 0 || combo->mask != 0)
-        combos = g_list_prepend (combos, combo);
+        combos = g_list_prepend (combos, g_steal_pointer (&combo));
     }
 
   return g_list_reverse (combos);