lchan: Release all higher sapis on the local end.
According to GSM 04.08 3.4.13.1.1 RR connection release in NOTE 1
one should release all non main signaling links using the local end
link release.
diff --git a/openbsc/src/libbsc/chan_alloc.c b/openbsc/src/libbsc/chan_alloc.c
index fa369a2..1efe2aa 100644
--- a/openbsc/src/libbsc/chan_alloc.c
+++ b/openbsc/src/libbsc/chan_alloc.c
@@ -389,7 +389,7 @@
link_id = sapi;
if (lchan->type == GSM_LCHAN_TCH_F || lchan->type == GSM_LCHAN_TCH_H)
link_id |= 0x40;
- rsl_release_request(lchan, link_id, lchan->release_mode);
+ rsl_release_request(lchan, link_id, RSL_REL_LOCAL_END);
return 0;
}