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padata: make padata_do_parallel to return zero on success

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To return -EINPROGRESS on success in padata_do_parallel was
considered to be odd. This patch changes this to return zero
on success. Also the only user of padata, pcrypt is adapted to
convert a return of zero to -EINPROGRESS within the crypto layer.
This also removes the pcrypt fallback if padata_do_parallel
was called on a not running padata instance as we can't handle it
anymore. This fallback was unused, so it's save to remove it.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Steffen Klassert
2010-07-07 15:32:02 +02:00
committed by Herbert Xu
parent 33e5445068
commit 83f619f3c8
2 changed files with 11 additions and 18 deletions
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18
crypto/pcrypt.c
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@@ -143,10 +143,8 @@ static int pcrypt_aead_encrypt(struct aead_request *req)
aead_request_set_assoc(creq, req->assoc, req->assoclen);
err = pcrypt_do_parallel(padata, &ctx->cb_cpu, pcrypt_enc_padata);
if (err)
return err;
else
err = crypto_aead_encrypt(creq);
if (!err)
return -EINPROGRESS;
return err;
}
@@ -187,10 +185,8 @@ static int pcrypt_aead_decrypt(struct aead_request *req)
aead_request_set_assoc(creq, req->assoc, req->assoclen);
err = pcrypt_do_parallel(padata, &ctx->cb_cpu, pcrypt_dec_padata);
if (err)
return err;
else
err = crypto_aead_decrypt(creq);
if (!err)
return -EINPROGRESS;
return err;
}
@@ -233,10 +229,8 @@ static int pcrypt_aead_givencrypt(struct aead_givcrypt_request *req)
aead_givcrypt_set_giv(creq, req->giv, req->seq);
err = pcrypt_do_parallel(padata, &ctx->cb_cpu, pcrypt_enc_padata);
if (err)
return err;
else
err = crypto_aead_givencrypt(creq);
if (!err)
return -EINPROGRESS;
return err;
}