diff --git a/drivers/char/random.c b/drivers/char/random.c
index 474f65128533..99a0f16d0541 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -722,7 +722,8 @@ retry:
 		}
 
 		/* should we wake readers? */
-		if (entropy_bits >= random_read_wakeup_bits) {
+		if (entropy_bits >= random_read_wakeup_bits &&
+		    wq_has_sleeper(&random_read_wait)) {
 			wake_up_interruptible(&random_read_wait);
 			kill_fasync(&fasync, SIGIO, POLL_IN);
 		}