vconf_get_str from buxton2 uses standard library.
So, it is recommended to use free instead of g_free because
g_free might not be a simple wrapper of free depending on
the build options of glib:
https://mail.gnome.org/archives/gtk-list/2000-July/msg00002.html
Change-Id: I0a6687dd2d303566b45746ee95b6b47f531276da
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
if (callback)
callback(ip_addr, NULL, data);
if (callback)
callback(ip_addr, NULL, data);
if (callback)
callback(proxy, NULL, data);
if (callback)
callback(proxy, NULL, data);