committer Herbert Xu <herbert@gondor.apana.org.au> 1151307278 +1000

[CRYPTO] digest: Remove unnecessary zeroing during init

Various digest algorithms operate one block at a time and therefore
keep a temporary buffer of partial blocks.  This buffer does not need
to be initialised since there is a counter which indicates what is and
isn't valid in it.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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