[ Upstream commit 606ba888b9 ]
When the rng module is removed the default RNG will be leaked.
Call crypto_del_default_rng to free it if possible.
Fixes: 7cecadb7cc ("crypto: rng - Do not free default RNG when it becomes unused")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>