diff options
Diffstat (limited to 'src/osmo-bsc/assignment_fsm.c')
| -rw-r--r-- | src/osmo-bsc/assignment_fsm.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/osmo-bsc/assignment_fsm.c b/src/osmo-bsc/assignment_fsm.c index 2f241e3c3..c5a1250f6 100644 --- a/src/osmo-bsc/assignment_fsm.c +++ b/src/osmo-bsc/assignment_fsm.c @@ -610,6 +610,15 @@ static void assignment_fsm_wait_rr_ass_complete_onenter(struct osmo_fsm_inst *fi int rc; struct gsm_subscriber_connection *conn = assignment_fi_conn(fi); + /* There may be situations where the SDCCH gets released while the TCH is still being activated. We will then + * receive ChanActivAck message from the BTS when the TCH is ready. Since the SDCCH is already released by + * then conn->lchan will be NULL in this case. */ + if (!conn->lchan) { + assignment_fail(GSM0808_CAUSE_EQUIPMENT_FAILURE, + "Unable to send RR Assignment Command: conn without lchan"); + return; + } + rc = gsm48_send_rr_ass_cmd(conn->lchan, conn->assignment.new_lchan, conn->lchan->ms_power); |