Check wl_display_roundtrip return value

References: https://github.com/swaywm/swaybg/issues/35

1 files changed, 4 insertions, 1 deletions

diff --git a/main.c b/main.c
index 29e8627..50bf450 100644
--- a/main.c
+++ b/main.c
@@ -573,7 +573,10 @@ int main(int argc, char **argv) {
 
 	struct wl_registry *registry = wl_display_get_registry(state.display);
 	wl_registry_add_listener(registry, &registry_listener, &state);
-	wl_display_roundtrip(state.display);
+	if (wl_display_roundtrip(state.display) < 0) {
+		swaybg_log(LOG_ERROR, "wl_display_roundtrip failed");
+		return 1;
+	}
 	if (state.compositor == NULL || state.shm == NULL ||
 			state.layer_shell == NULL || state.xdg_output_manager == NULL) {
 		swaybg_log(LOG_ERROR, "Missing a required Wayland interface");