execute: explicitly ignore fd_wait_for_event()'s return value

Fixes CID#1402316

diff --git a/src/core/execute.c b/src/core/execute.c
index ec95ce3d1049a613913cae6a2737e335b647df99..54775e9dfa047193f42450d9f408a7208583c1e1 100644 (file)
--- a/src/core/execute.c
+++ b/src/core/execute.c
@@ -1621,7 +1621,7 @@ static void do_idle_pipe_dance(int idle_pipe[static 4]) {
                         n = write(idle_pipe[3], "x", 1);
                         if (n > 0)
                                 /* Wait for systemd to react to the signal above. */
-                                fd_wait_for_event(idle_pipe[0], POLLHUP, IDLE_TIMEOUT2_USEC);
+                                (void) fd_wait_for_event(idle_pipe[0], POLLHUP, IDLE_TIMEOUT2_USEC);
                 }
 
                 idle_pipe[0] = safe_close(idle_pipe[0]);