crypto: qat - Fix incorrect uses of memzero_explicit

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memzero_explicit should only be used on stack variables that get
zapped just before they go out of scope.

This patch replaces all unnecessary uses of memzero_explicit with
memset, removes two memzero_explicit calls altogether as the tfm
context comes pre-zeroed, and adds a missing memzero_explicit of
the stack variable buff in qat_alg_do_precomputes.  The memzeros
on ipad/opad + digest_size/auth_keylen are also removed as the
entire auth_state is already zeroed on entry.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Tadeusz Struk <tadeusz.struk@intel.com>

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This commit is contained in:

Herbert Xu 2015-01-06 07:54:41 +11:00

parent 15acabfd02

commit ad511e260a

1 changed files with 20 additions and 25 deletions

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drivers/crypto/qat/qat_common/qat_algs.c

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