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backends: Fix dangling callback not being disconnected

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This fixes possible crashes if configuration is changed on a device that
was added and then removed.

https://bugzilla.gnome.org/show_bug.cgi?id=784881
This commit is contained in:
Carlos Garnacho 2017-07-12 12:24:16 +02:00
parent 45014a27a4
commit e52408d259
1 changed files with 5 additions and 2 deletions
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7
src/backends/meta-input-settings.c
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@ -53,6 +53,7 @@ struct _DeviceMappingInfo
MetaInputSettings *input_settings;
ClutterInputDevice *device;
GSettings *settings;
guint changed_id;
#ifdef HAVE_LIBWACOM
WacomDevice *wacom_device;
#endif
@ -1208,6 +1209,7 @@ device_mapping_info_free (DeviceMappingInfo *info)
if (info->wacom_device)
libwacom_destroy (info->wacom_device);
#endif
g_signal_handler_disconnect (info->settings, info->changed_id);
g_object_unref (info->settings);
g_slice_free (DeviceMappingInfo, info);
}
@ -1252,8 +1254,9 @@ check_add_mappable_device (MetaInputSettings *input_settings,
}
#endif
g_signal_connect (settings, "changed",
G_CALLBACK (mapped_device_changed_cb), info);
info->changed_id = g_signal_connect (settings, "changed",
G_CALLBACK (mapped_device_changed_cb),
info);
g_hash_table_insert (priv->mappable_devices, device, info);