[crash][pjmedia-videodev] Initialization/refresh

[gmstima@xxxxxxxxx (R. Savchenko)]

Hi all,

if some of devices wasn't initialized device factory operator for this 
device will be NULL and if you try than refresh devices it'll be crash on

static pj_status_t init_driver(unsigned drv_idx, pj_bool_t refresh)
{
----
dev_cnt = f->op->get_dev_count(f); //(f->op == NULL)
----
}

-- 
Regards,
R. Savchenko.