sched: Assert that the generated message is not empty
Currently the msg data is accessed and index 0 assuming the msg is
not empty. While this should be always the case, the msg can be
empty if there are software errors in the message creation functions.
This commit adds an assertion to catch this kind of bugs.
Sponsored-by: On-Waves ehf
diff --git a/src/gprs_rlcmac_sched.cpp b/src/gprs_rlcmac_sched.cpp
index b4db88c..8bf2573 100644
--- a/src/gprs_rlcmac_sched.cpp
+++ b/src/gprs_rlcmac_sched.cpp
@@ -330,6 +330,7 @@
/* msg is now available */
/* set USF */
+ OSMO_ASSERT(msgb_length(msg) > 0);
msg->data[0] = (msg->data[0] & 0xf8) | usf;
/* Used to measure the leak rate, count all blocks */