diff options
Diffstat (limited to 'src/osmo-bts-sysmo/tch.c')
| -rw-r--r-- | src/osmo-bts-sysmo/tch.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/src/osmo-bts-sysmo/tch.c b/src/osmo-bts-sysmo/tch.c index a390c8ca..ce94c729 100644 --- a/src/osmo-bts-sysmo/tch.c +++ b/src/osmo-bts-sysmo/tch.c @@ -503,8 +503,8 @@ static int is_recv_only(uint8_t speech_mode) /*! \brief receive a traffic L1 primitive for a given lchan */ int l1if_tch_rx(struct gsm_bts_trx *trx, uint8_t chan_nr, struct msgb *l1p_msg) { - GsmL1_Prim_t *l1p = msgb_l1prim(l1p_msg); - GsmL1_PhDataInd_t *data_ind = &l1p->u.phDataInd; + GsmL1_Prim_t *l1p; + GsmL1_PhDataInd_t *data_ind; uint8_t *payload, payload_type, payload_len, sid_first[9] = { 0 }; struct msgb *rmsg = NULL; struct gsm_lchan *lchan = &trx->ts[L1SAP_CHAN2TS(chan_nr)].lchan[l1sap_chan2ss(chan_nr)]; @@ -512,7 +512,12 @@ int l1if_tch_rx(struct gsm_bts_trx *trx, uint8_t chan_nr, struct msgb *l1p_msg) if (is_recv_only(lchan->abis_ip.speech_mode)) return -EAGAIN; - if (data_ind->msgUnitParam.u8Size < 1) { + if (l1p_msg) { + l1p = msgb_l1prim(l1p_msg); + data_ind = &l1p->u.phDataInd; + } + + if (!l1p_msg || data_ind->msgUnitParam.u8Size < 1) { LOGPFN(DL1P, LOGL_DEBUG, data_ind->u32Fn, "chan_nr %d Rx Payload size 0\n", chan_nr); /* Push empty payload to upper layers */ rmsg = msgb_alloc_headroom(256, 128, "L1P-to-RTP"); |