diff --git a/drivers/char/random.c b/drivers/char/random.c
index ea5b92946045..3fe39fe24f56 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -2285,8 +2285,12 @@ void add_hwgenerator_randomness(const char *buffer, size_t count,
 	struct entropy_store *poolp = &input_pool;
 
 	if (unlikely(crng_init == 0)) {
-		crng_fast_load(buffer, count);
-		return;
+		size_t ret = crng_fast_load(buffer, count);
+		mix_pool_bytes(poolp, buffer, ret);
+		count -= ret;
+		buffer += ret;
+		if (!count || crng_init == 0)
+			return;
 	}
 
 	/* Suspend writing if we're above the trickle threshold.