This fixes frequent crashes observed on a UniFi AC Mesh using OpenWrt
master and 19.07. 18.06 seems not affected from our testing.
Signed-off-by: David Bauer <mail@david-bauer.net>
(cherry picked from commit 641a93f0f226aa1b4e27bc6f1fc36f9fe63a11a0)
Signed-off-by: David Bauer <mail@david-bauer.net>