diff --git a/src/osmo-upf/upf_gtpu_echo.c b/src/osmo-upf/upf_gtpu_echo.c
index 0d93299..cbf804b 100644
--- a/src/osmo-upf/upf_gtpu_echo.c
+++ b/src/osmo-upf/upf_gtpu_echo.c
@@ -146,8 +146,6 @@ int upf_gtpu_echo_read_cb(struct osmo_fd *ofd, unsigned int what)
 		LOG_GTP_DEV(dev, LOGL_ERROR, "rx: GTPv1-U message type %u not supported\n", h->msg_type);
 		return -1;
 	}
-
-	return 0;
 }
 
 int upf_gtpu_echo_setup(struct upf_gtp_dev *dev)