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crypto: sha-s390 - Reset index after processing partial block

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The partial block handling in sha-s390 is broken when we get a
partial block that is followed by an update which fills it with
bytes left-over.  Instead of storing the newly left-over bytes
at the start of the buffer, it will be stored immediately after
the previous partial block.

This patch fixes this by resetting the index pointer.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2011-02-07 20:26:06 +11:00
parent 1bae4ce27c
commit 9d20b571f5
1 changed files with 1 additions and 0 deletions
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arch/s390/crypto/sha_common.c
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@ -38,6 +38,7 @@ int s390_sha_update(struct shash_desc *desc, const u8 *data, unsigned int len)
BUG_ON(ret != bsize);
data += bsize - index;
len -= bsize - index;
index = 0;
}
/* process as many blocks as possible */