tree 728713e8fbfe7790c480e663fab64d6ce4b9af7b
parent f1ab428711358fbb747ba392c3448462494e6c6a
author LABBE Corentin <clabbe.montjoie@gmail.com> 1441801627 +0200
committer Herbert Xu <herbert@gondor.apana.org.au> 1441876975 +0800

crypto: sunxi-ss - Fix a possible driver hang with ciphers

The sun4i_ss_opti_poll function cipher data until the output miter have
a length of 0.
If the crypto API client, give more SGs than necessary this could result
in an infinite loop.
Fix it by checking for remaining bytes, just like sun4i_ss_cipher_poll().

Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>