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[CRYPTO] api: Added cra_init/cra_exit

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This patch adds the hooks cra_init/cra_exit which are called during a tfm's
construction and destruction respectively.  This will be used by the instances
to allocate child tfm's.

For now this lets us get rid of the coa_init/coa_exit functions which are
used for exactly that purpose (unlike the dia_init function which is called
for each transaction).

In fact the coa_exit path is currently buggy as it may get called twice
when an error is encountered during initialisation.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2006-05-24 13:02:26 +10:00
parent 110bf1c0e9
commit c7fc05992a
4 changed files with 14 additions and 15 deletions
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11
crypto/api.c
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@ -188,13 +188,16 @@ struct crypto_tfm *crypto_alloc_tfm(const char *name, u32 flags)
if (crypto_init_flags(tfm, flags))
goto out_free_tfm;
if (crypto_init_ops(tfm)) {
crypto_exit_ops(tfm);
if (crypto_init_ops(tfm))
goto out_free_tfm;
}
if (alg->cra_init && alg->cra_init(tfm))
goto cra_init_failed;
goto out;
cra_init_failed:
crypto_exit_ops(tfm);
out_free_tfm:
kfree(tfm);
tfm = NULL;
@ -215,6 +218,8 @@ void crypto_free_tfm(struct crypto_tfm *tfm)
alg = tfm->__crt_alg;
size = sizeof(*tfm) + alg->cra_ctxsize;
if (alg->cra_exit)
alg->cra_exit(tfm);
crypto_exit_ops(tfm);
crypto_alg_put(alg);
memset(tfm, 0, size);