Bluetooth: guard against controllers sending zero'd events

Some controllers have been observed to send zero'd events under some
conditions.  This change guards against this condition as well as adding
a trace to facilitate diagnosability of this condition.

Signed-off-by: Alain Michaud <alainm@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Alain Michaud 2020-03-03 15:55:34 +00:00 • committed by Marcel Holtmann
commit 08bb4da901