Use timeval_to_spec helper in avalon driver.
diff --git a/driver-avalon.c b/driver-avalon.c
index 36d4fc7..8fca350 100644
--- a/driver-avalon.c
+++ b/driver-avalon.c
@@ -1304,8 +1304,7 @@ static int64_t avalon_scanhash(struct thr_info *thr)
tdiff.tv_usec = us_timeout - (tdiff.tv_sec * 1000000);
cgtime(&now);
timeradd(&now, &tdiff, &then);
- abstime.tv_sec = then.tv_sec;
- abstime.tv_nsec = then.tv_usec * 1000;
+ timeval_to_spec(&abstime, &then);
/* Wait until avalon_send_tasks signals us that it has completed
* sending its work or a full nonce range timeout has occurred */