core: always initialize ExecParamters.bus_endpoint_fd to -1

Otherwise it might be passed in as 0, which is a valid fd, but usually
does not refer to a real endpoint.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/core/swap.c b/src/core/swap.c
index 5f98f0b98b..0d04bb4de8 100644
--- a/src/core/swap.c
+++ b/src/core/swap.c
@@ -607,6 +607,7 @@ static int swap_spawn(Swap *s, ExecCommand *c, pid_t *_pid) {
                 .apply_permissions = true,
                 .apply_chroot      = true,
                 .apply_tty_stdin   = true,
+                .bus_endpoint_fd   = -1,
         };
 
         assert(s);