conn may be NULL too

diff --git a/src/modules/rlm_sigtran/client.c b/src/modules/rlm_sigtran/client.c
index 7964a16bfe16c567a25b47bbfa53400681847880..fea6d76eeae1336507f71c5f09d880b83eebe7f2 100644 (file)
--- a/src/modules/rlm_sigtran/client.c
+++ b/src/modules/rlm_sigtran/client.c
@@ -240,7 +240,7 @@ int sigtran_client_link_down(sigtran_conn_t const **conn)
 {
        sigtran_transaction_t   *txn;
 
-       if (!(*conn)->mtp3_link) return 0;      /* Ignore if there is no link */
+       if (!*conn || !(*conn)->mtp3_link) return 0;    /* Ignore if there is no link */
 
        txn = talloc_zero(NULL, sigtran_transaction_t);
        txn->request.type = SIGTRAN_REQUEST_LINK_DOWN;