[gsm] Make LCR work with current Osmocom-BB.

[lcr.git] / gsm.cpp

diff --git a/gsm.cpp b/gsm.cpp
index 07746f7..119f0f5 100644 (file)
--- a/gsm.cpp
+++ b/gsm.cpp
@@ -199,14 +199,16 @@ struct gsm_mncc *create_mncc(int msg_type, unsigned int callref)
 }
 int send_and_free_mncc(void *instance, unsigned int msg_type, void *data)
 {
-       int ret;
+       int ret = 0;
 
+       if (instance) {
 #ifdef WITH_GSM_BS
-       ret = mncc_send((struct gsm_network *)instance, msg_type, data);
+               ret = mncc_send((struct gsm_network *)instance, msg_type, data);
 #endif
 #ifdef WITH_GSM_MS
-       ret = mncc_send((struct osmocom_ms *)instance, msg_type, data);
+               ret = mncc_send((struct osmocom_ms *)instance, msg_type, data);
 #endif
+       }
        free(data);
 
        return ret;