The timeout for ipsec acquire does not decrement the reference

The timeout for ipsec acquire does not decrement the reference
counter to 0 properly.  We have one reference count for the lists,
and one for the timeout handler.  When the timout fires, it has to
decrement the reference to itself.  Then the ipa is removed from
the lists and decremented again.
from Stefan Butz; OK tobhe@ mvs@