diff --git a/[refs] b/[refs]
index c8c0f8a27bae..56f9a5d1ebf2 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: aabd6a8fa5a933bdf968cd86e34122745c1960e8
+refs/heads/master: b7d44d9487a11e835de10908f4ab30b4290c0b7f
diff --git a/trunk/drivers/char/hw_random/core.c b/trunk/drivers/char/hw_random/core.c
index 69ae5972713c..a0f7724852eb 100644
--- a/trunk/drivers/char/hw_random/core.c
+++ b/trunk/drivers/char/hw_random/core.c
@@ -380,6 +380,15 @@ void hwrng_unregister(struct hwrng *rng)
 }
 EXPORT_SYMBOL_GPL(hwrng_unregister);
 
+static void __exit hwrng_exit(void)
+{
+	mutex_lock(&rng_mutex);
+	BUG_ON(current_rng);
+	kfree(rng_buffer);
+	mutex_unlock(&rng_mutex);
+}
+
+module_exit(hwrng_exit);
 
 MODULE_DESCRIPTION("H/W Random Number Generator (RNG) driver");
 MODULE_LICENSE("GPL");