crypto: inside-secure - fix hash when length is a multiple of a block

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commit 809778e02c upstream.

This patch fixes the hash support in the SafeXcel driver when the update
size is a multiple of a block size, and when a final call is made just
after with a size of 0. In such cases the driver should cache the last
block from the update to avoid handling 0 length data on the final call
(that's a hardware limitation).

Fixes: 1b44c5a60c ("crypto: inside-secure - add SafeXcel EIP197 crypto engine driver")
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Antoine Tenart 2017-12-26 17:21:17 +01:00 • committed by Greg Kroah-Hartman

parent 5ca02df016

commit bb9eec7b30

1 changed files with 25 additions and 11 deletions

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drivers/crypto/inside-secure/safexcel_hash.c

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