It was reported that for VLAN interfaces, failing to release this reference count will prevent a system from rebooting properly, resulting in the need to power cycle. Reported-by: Assen Totin Internal-Issue-ID: DAHLIN-343 Signed-off-by: Shaun Ruffell <sruffell@digium.com> Signed-off-by: Russ Meyerriecks <rmeyerriecks@digium.com>