tests/interpol-test: check if mainloop_start() succeed

diff --git a/src/tests/interpol-test.c b/src/tests/interpol-test.c
index 20d2c23..d7da660 100644 (file)
--- a/src/tests/interpol-test.c
+++ b/src/tests/interpol-test.c
@@ -126,7 +126,8 @@ int main(int argc, char *argv[]) {
 
     pa_gettimeofday(&start);
 
-    pa_threaded_mainloop_start(m);
+    r = pa_threaded_mainloop_start(m);
+    assert(r >= 0);
 
     for (k = 0; k < 5000; k++) {
         pa_bool_t success = FALSE, changed = FALSE;