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power: Fix crash when panel is closed quickly

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Fix a use-after-free while creating the dbus proxy for
org.gnome.SettingsDaemon.Power.Keyboard. This fix is identical to the
previous fix for the screen proxy.

https://bugzilla.gnome.org/show_bug.cgi?id=794089
This commit is contained in:
Benjamin Berg 2018-03-05 16:12:48 +01:00 • committed by Bastien Nocera
parent 9066ce5525
commit 1d72a0b350
1 changed files with 8 additions and 5 deletions
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13
panels/power/cc-power-panel.c
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@ -1117,11 +1117,11 @@ static void
got_kbd_proxy_cb (GObject *source_object, GAsyncResult *res, gpointer user_data)
{
GError *error = NULL;
CcPowerPanel *self = CC_POWER_PANEL (user_data);
CcPowerPanelPrivate *priv = self->priv;
CcPowerPanel *self;
GDBusProxy *kbd_proxy;
priv->kbd_proxy = g_dbus_proxy_new_for_bus_finish (res, &error);
if (priv->kbd_proxy == NULL)
kbd_proxy = g_dbus_proxy_new_for_bus_finish (res, &error);
if (kbd_proxy == NULL)
{
if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
g_printerr ("Error creating keyboard proxy: %s\n", error->message);
@ -1129,8 +1129,11 @@ got_kbd_proxy_cb (GObject *source_object, GAsyncResult *res, gpointer user_data)
return;
}
self = CC_POWER_PANEL (user_data);
self->priv->kbd_proxy = kbd_proxy;
/* we want to change the bar if the user presses brightness buttons */
g_signal_connect (priv->kbd_proxy, "g-properties-changed",
g_signal_connect (kbd_proxy, "g-properties-changed",
G_CALLBACK (on_kbd_property_change), self);
sync_kbd_brightness (self);