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crypto: serpent-sse2 - clear CRYPTO_TFM_REQ_MAY_SLEEP in lrw and xts modes 

LRW/XTS patches for serpent-sse2 forgot to add this. CRYPTO_TFM_REQ_MAY_SLEEP
should be cleared as sleeping between kernel_fpu_begin()/kernel_fpu_end() is
not allowed.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Jussi Kivilinna 2011-11-09 19:44:12 +02:00 committed by Herbert Xu
parent 5962f8b66d
commit d356433856
1 changed files with 4 additions and 0 deletions
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4
arch/x86/crypto/serpent_sse2_glue.c
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@ -554,6 +554,7 @@ static int lrw_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
};
int ret;
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
ret = lrw_crypt(desc, dst, src, nbytes, &req);
serpent_fpu_end(crypt_ctx.fpu_enabled);
@ -579,6 +580,7 @@ static int lrw_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
};
int ret;
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
ret = lrw_crypt(desc, dst, src, nbytes, &req);
serpent_fpu_end(crypt_ctx.fpu_enabled);
@ -671,6 +673,7 @@ static int xts_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
};
int ret;
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
ret = xts_crypt(desc, dst, src, nbytes, &req);
serpent_fpu_end(crypt_ctx.fpu_enabled);
@ -697,6 +700,7 @@ static int xts_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
};
int ret;
desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
ret = xts_crypt(desc, dst, src, nbytes, &req);
serpent_fpu_end(crypt_ctx.fpu_enabled);