diff --git a/sys/dev/random/random_harvestq.c b/sys/dev/random/random_harvestq.c
--- a/sys/dev/random/random_harvestq.c
+++ b/sys/dev/random/random_harvestq.c
@@ -296,9 +296,11 @@
 			 * There are reports that RDSEED on x86 metal falls
 			 * behind the rate at which we query it, for example.
 			 * But it's still a better entropy source than RDRAND.
+			 *
+			 * If it does, just wait till the next time we poll.
 			 */
 			if (n == 0)
-				continue;
+				break;
 			random_harvest_direct(entropy, n, rrs->rrs_source->rs_source);
 		}
 	}