From: Jeremy Sowden
Date: Sun, 16 Jun 2019 16:54:37 +0100
> lapb_register calls lapb_create_cb, which initializes the control-
> block's ref-count to one, and __lapb_insert_cb, which increments it when
> adding the new block to the list of blocks.
>
> lapb_unregister calls __lapb_remove_cb, whic
lapb_register calls lapb_create_cb, which initializes the control-
block's ref-count to one, and __lapb_insert_cb, which increments it when
adding the new block to the list of blocks.
lapb_unregister calls __lapb_remove_cb, which decrements the ref-count
when removing control-block from the list o