On Wed, 16 Mar 2011 18:26:06 -0700 David Daney <ddaney@xxxxxxxxxxxxxxxxxx> wrote: > The 8250 driver is a bit weird in that in addition to supporting > platform devices, extra devices can be added by calling > serial8250_register_port(). > > The problem is that if we call serial8250_register_port() before the > driver is initialized Bad Things happen (we dereference NULL > pointers). > > There doesn't seem to be a general way to know if a driver has been > initialized I've had a bigger dig into this. I think the correct answer is probably "always go via platform devices or similar". That *is* the notifier in the kernel of today. serial8250_register_port ultimately should I think ultimatly become an internal helper. Alan -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html