Yet another rate fixup

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/io_u.c b/io_u.c
index bac6573..34ab58a 100644
--- a/io_u.c
+++ b/io_u.c
@@ -970,10 +970,12 @@
 			}
 			if (!td->o.disable_bw)
 				add_bw_sample(td, idx, bytes, &icd->time);
-			if (__should_check_rate(td, idx))
-				td->rate_pending_usleep[idx] += (long) td->rate_usec_cycle[idx] - rusec;
+			if (__should_check_rate(td, idx)) {
+				td->rate_pending_usleep[idx] +=
+					(long) td->rate_usec_cycle[idx] - rusec;
+			}
 			if (__should_check_rate(td, idx ^ 1))
-				td->rate_pending_usleep[idx ^ 1] -= lusec;
+				td->rate_pending_usleep[idx ^ 1] -= rusec;
 		}
 
 		if (td_write(td) && idx == DDIR_WRITE &&