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crypto: qat - comply with crypto_kpp_maxsize()

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crypto_kpp_maxsize() asks for the output buffer size without
caring for errors. It allways assume that will be called after
a valid setkey. Comply with it and return what he wants.

Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Tudor-Dan Ambarus 2017-05-25 10:18:11 +03:00 committed by Herbert Xu
parent d0efb48b86
commit 85ac98cbac
1 changed files with 2 additions and 2 deletions
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4
drivers/crypto/qat/qat_common/qat_asym_algs.c
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@ -521,11 +521,11 @@ static int qat_dh_set_secret(struct crypto_kpp *tfm, const void *buf,
return 0;
}
static int qat_dh_max_size(struct crypto_kpp *tfm)
static unsigned int qat_dh_max_size(struct crypto_kpp *tfm)
{
struct qat_dh_ctx *ctx = kpp_tfm_ctx(tfm);
return ctx->p ? ctx->p_size : -EINVAL;
return ctx->p_size;
}
static int qat_dh_init_tfm(struct crypto_kpp *tfm)