Add logging and testing for FSM deallocation

osmo_fsm_inst_alloc() logs allocation but osmo_fsm_inst_free() is
silent. Fix this by adding log message for deallocation to make FSM
lifecycle tracking easier. Also make sure it's covered by test suite.

Change-Id: I7e5b55a1fff8e36cf61c7fb61d3e79c1f00e29d2

1 files changed, 1 insertions, 0 deletions

diff --git a/src/fsm.c b/src/fsm.c
index f525f400..9dc6b987 100644
--- a/src/fsm.c
+++ b/src/fsm.c
@@ -233,6 +233,7 @@ struct osmo_fsm_inst *osmo_fsm_inst_alloc_child(struct osmo_fsm *fsm,
  */
 void osmo_fsm_inst_free(struct osmo_fsm_inst *fi)
 {
+	LOGPFSM(fi, "Deallocated\n");
 	osmo_timer_del(&fi->timer);
 	llist_del(&fi->list);
 	talloc_free(fi);