main: check that outputs are available before running main loop

Signed-off-by: Marcus Fritzsch <marcus_fritzsch@mentor.com>

diff --git a/src/main.cpp b/src/main.cpp
index cd8d67d..0acf201 100644 (file)
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -92,6 +92,9 @@ int main(int argc, char **argv) {
    if (!c.c)
       fatal("ivi_controller global not available");
 
+   if (c.outputs.empty())
+      fatal("no output was set up!");
+
    while (check_events(d.get(), &c, STDIN_FILENO) != -1) {
       c.c->execute_pending();
    }