diff options
Diffstat (limited to 'src/gsm')
| -rw-r--r-- | src/gsm/lapdm.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/src/gsm/lapdm.c b/src/gsm/lapdm.c index 1c08113e..2bda48ae 100644 --- a/src/gsm/lapdm.c +++ b/src/gsm/lapdm.c @@ -1069,8 +1069,24 @@ static int rslms_rx_rll(struct msgb *msg, struct lapdm_channel *lc) return -EINVAL; } - LOGP(DLLAPD, LOGL_INFO, "(%p) RLL Message '%s' received. (sapi %d)\n", - lc->name, rsl_msg_name(msg_type), sapi); + switch (msg_type) { + case RSL_MT_UNIT_DATA_REQ: + case RSL_MT_DATA_REQ: + case RSL_MT_SUSP_REQ: + case RSL_MT_REL_REQ: + /* This is triggered in abnormal error conditions where + * set_lapdm_context() was not called for the channel earlier. */ + if (!dl->dl.lctx.dl) { + LOGP(DLLAPD, LOGL_NOTICE, "(%p) RLL Message '%s' received without LAPDm context. (sapi %d)\n", + lc->name, rsl_msg_name(msg_type), sapi); + msgb_free(msg); + return -EINVAL; + } + break; + default: + LOGP(DLLAPD, LOGL_INFO, "(%p) RLL Message '%s' received. (sapi %d)\n", + lc->name, rsl_msg_name(msg_type), sapi); + } switch (msg_type) { case RSL_MT_UNIT_DATA_REQ: |