mncc: bts can be NULL, attempt to find the bts from the transaction
Follow trans->conn->lchan to the BTS instead of using the BTS that
is guranteed to be NULL in the codepath we have entered here. The
trans->conn should still be there, and the lchan should be valid as
well as we have reordered the clear statements.
diff --git a/openbsc/src/gsm_04_08.c b/openbsc/src/gsm_04_08.c
index d1789aa..df24d2f 100644
--- a/openbsc/src/gsm_04_08.c
+++ b/openbsc/src/gsm_04_08.c
@@ -2921,7 +2921,7 @@
int i, rc = 0;
struct gsm_trans *trans = NULL, *transt;
struct gsm_subscriber_connection *conn = NULL;
- struct gsm_bts *bts;
+ struct gsm_bts *bts = NULL;
struct gsm_mncc *data = arg, rel;
DEBUGP(DMNCC, "receive message %s\n", get_mncc_name(msg_type));