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authorAndreas Eversberg <jolly@eversberg.eu>2013-03-11 08:20:48 +0100
committerAndreas Eversberg <jolly@eversberg.eu>2013-07-29 12:39:38 +0200
commit8e67fa458d5717e44695f140519bc6f2cecff855 (patch)
tree02786e68cb93da7276e5a9075fa9dd0e921cd208
parent72e6e17c941d641c186d5c751efc78d2e7d396ec (diff)
Add check for non existing lchan at tch_frame_down()
Traffic cannot sent to BTS, if there is (currently) no logical channel associated with the transaction.
-rw-r--r--openbsc/src/libmsc/gsm_04_08.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/openbsc/src/libmsc/gsm_04_08.c b/openbsc/src/libmsc/gsm_04_08.c
index 45d132e1b..b9b84e76a 100644
--- a/openbsc/src/libmsc/gsm_04_08.c
+++ b/openbsc/src/libmsc/gsm_04_08.c
@@ -1772,6 +1772,10 @@ int tch_frame_down(struct gsm_network *net, uint32_t callref, struct gsm_data_fr
LOGP(DMNCC, LOGL_NOTICE, "TCH frame for trans without conn\n");
return 0;
}
+ if (!trans->conn->lchan) {
+ LOGP(DMNCC, LOGL_NOTICE, "TCH frame for trans without lchan\n");
+ return 0;
+ }
if (trans->conn->lchan->type != GSM_LCHAN_TCH_F) {
/* This should be LOGL_ERROR or NOTICE, but
* unfortuantely it happens for a couple of frames at