diff options
| -rw-r--r-- | arch/s390/crypto/aes_s390.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c index dc0f72dd6e03..a34faadc757e 100644 --- a/arch/s390/crypto/aes_s390.c +++ b/arch/s390/crypto/aes_s390.c @@ -512,7 +512,7 @@ static int xts_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key, unsigned long fc; int err; - err = xts_check_key(tfm, in_key, key_len); + err = xts_fallback_setkey(tfm, in_key, key_len); if (err) return err; @@ -529,7 +529,7 @@ static int xts_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key, /* Check if the function code is available */ xts_ctx->fc = (fc && cpacf_test_func(&km_functions, fc)) ? fc : 0; if (!xts_ctx->fc) - return xts_fallback_setkey(tfm, in_key, key_len); + return 0; /* Split the XTS key into the two subkeys */ key_len = key_len / 2; @@ -586,7 +586,7 @@ static int xts_aes_encrypt(struct blkcipher_desc *desc, struct s390_xts_ctx *xts_ctx = crypto_blkcipher_ctx(desc->tfm); struct blkcipher_walk walk; - if (unlikely(!xts_ctx->fc)) + if (unlikely(!xts_ctx->fc || (nbytes % XTS_BLOCKSIZE) != 0)) return xts_fallback_encrypt(desc, dst, src, nbytes); blkcipher_walk_init(&walk, dst, src, nbytes); @@ -600,7 +600,7 @@ static int xts_aes_decrypt(struct blkcipher_desc *desc, struct s390_xts_ctx *xts_ctx = crypto_blkcipher_ctx(desc->tfm); struct blkcipher_walk walk; - if (unlikely(!xts_ctx->fc)) + if (unlikely(!xts_ctx->fc || (nbytes % XTS_BLOCKSIZE) != 0)) return xts_fallback_decrypt(desc, dst, src, nbytes); blkcipher_walk_init(&walk, dst, src, nbytes); |