diff --git a/drivers/char/hw_random/exynos-rng.c b/drivers/char/hw_random/exynos-rng.c
index dc4701fd814f10aae76bfd852429f89bfe229c46..73318e2a34ddd2c4d320b3f26ccbb0ed3eea15fd 100644
--- a/drivers/char/hw_random/exynos-rng.c
+++ b/drivers/char/hw_random/exynos-rng.c
@@ -95,7 +95,7 @@ static int exynos_read(struct hwrng *rng, void *buf,
 	*data = exynos_rng_readl(exynos_rng, EXYNOS_PRNG_OUT1_OFFSET);
 
 	pm_runtime_mark_last_busy(exynos_rng->dev);
-	pm_runtime_autosuspend(exynos_rng->dev);
+	pm_runtime_put_sync_autosuspend(exynos_rng->dev);
 
 	return 4;
 }