diff options
Diffstat (limited to 'drivers/crypto/vmx/aes_cbc.c')
| -rw-r--r-- | drivers/crypto/vmx/aes_cbc.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/crypto/vmx/aes_cbc.c b/drivers/crypto/vmx/aes_cbc.c index 7120ab24d8c6..7299995c78ec 100644 --- a/drivers/crypto/vmx/aes_cbc.c +++ b/drivers/crypto/vmx/aes_cbc.c @@ -82,11 +82,13 @@ static int p8_aes_cbc_setkey(struct crypto_tfm *tfm, const u8 *key, int ret; struct p8_aes_cbc_ctx *ctx = crypto_tfm_ctx(tfm); + preempt_disable(); pagefault_disable(); enable_kernel_altivec(); ret = aes_p8_set_encrypt_key(key, keylen * 8, &ctx->enc_key); ret += aes_p8_set_decrypt_key(key, keylen * 8, &ctx->dec_key); pagefault_enable(); + preempt_enable(); ret += crypto_blkcipher_setkey(ctx->fallback, key, keylen); return ret; @@ -110,6 +112,7 @@ static int p8_aes_cbc_encrypt(struct blkcipher_desc *desc, ret = crypto_blkcipher_encrypt(&fallback_desc, dst, src, nbytes); } else { + preempt_disable(); pagefault_disable(); enable_kernel_altivec(); @@ -125,6 +128,7 @@ static int p8_aes_cbc_encrypt(struct blkcipher_desc *desc, } pagefault_enable(); + preempt_enable(); } return ret; @@ -148,6 +152,7 @@ static int p8_aes_cbc_decrypt(struct blkcipher_desc *desc, ret = crypto_blkcipher_decrypt(&fallback_desc, dst, src, nbytes); } else { + preempt_disable(); pagefault_disable(); enable_kernel_altivec(); @@ -163,6 +168,7 @@ static int p8_aes_cbc_decrypt(struct blkcipher_desc *desc, } pagefault_enable(); + preempt_enable(); } return ret; |