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crypto: sun4i_ss_prng - fix return value of sun4i_ss_prng_generate

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commit dd78c832ffaf86eb6434e56de4bc3bc31f03f771 upstream.

According to crypto/rng.h generate function should return 0 on success
and < 0 on error.

Fixes: b8ae5c7387ad ("crypto: sun4i-ss - support the Security System PRNG")
Signed-off-by: Artem Savkov <artem.savkov@gmail.com>
Acked-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Artem Savkov 2018-02-06 22:20:21 +01:00 committed by Greg Kroah-Hartman
parent fff8ad7c18
commit b3d33c5f29
1 changed files with 1 additions and 1 deletions
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2
drivers/crypto/sunxi-ss/sun4i-ss-prng.c
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@ -52,5 +52,5 @@ int sun4i_ss_prng_generate(struct crypto_rng *tfm, const u8 *src,
writel(0, ss->base + SS_CTL);
spin_unlock(&ss->slock);
return dlen;
return 0;
}