fix segfault on invalid usage

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@10846 d0543943-73ff-0310-b7d9-9358b9ac24b2

diff --git a/src/mod/applications/mod_limit/mod_limit.c b/src/mod/applications/mod_limit/mod_limit.c
index 6d5d0fd7b8d2b867f61dfa9d203b1ddf303605f6..3f9877ee35bd8ec48f80344a48420e0d30f35cae 100644 (file)
--- a/src/mod/applications/mod_limit/mod_limit.c
+++ b/src/mod/applications/mod_limit/mod_limit.c
@@ -439,6 +439,9 @@ SWITCH_STANDARD_APP(db_function)
                                                   argv[3]);
        } else if (!strcasecmp(argv[0], "delete")) {
                sql = switch_mprintf("delete from db_data where realm='%q' and data_key='%q'", argv[1], argv[2]);
+       } else {
+               switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "USAGE: db %s\n", DB_USAGE);
+               return;
        }
 
        switch_assert(sql);