crypto: atmel-sha204a - clear RNG data from memory

In atmel_sha204a_rng_read(), use memzero_explicit() to clear the local
stack variable cmd before it goes out of scope, since cmd.data may still
hold the last 32 random bytes.

Since atmel_sha204a_rng_done() caches work_data in hwrng::priv, and its
response data is later used as RNG entropy, use kfree_sensitive() to
clear the cached data on transaction failure and device removal.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

0 files changed, 0 insertions, 0 deletions