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crypto: api - Move alg ref count init to crypto_check_alg 

We currently initialise the crypto_alg ref count in the function
__crypto_register_alg.  As one of the callers of that function
crypto_register_instance needs to obtain a ref count before it
calls __crypto_register_alg, we need to move the initialisation
out of there.

Since both callers of __crypto_register_alg call crypto_check_alg,
this is the logical place to perform the initialisation.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Stephan Mueller <smueller@chronox.de>
This commit is contained in:
Herbert Xu 2015-04-09 17:40:35 +08:00
parent 1711045fb1
commit e9b8e5beb7
1 changed files with 2 additions and 1 deletions
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3
crypto/algapi.c
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@ -64,6 +64,8 @@ static int crypto_check_alg(struct crypto_alg *alg)
if (alg->cra_priority < 0)
return -EINVAL;
atomic_set(&alg->cra_refcnt, 1);
return crypto_set_driver_name(alg);
}
@ -187,7 +189,6 @@ static struct crypto_larval *__crypto_register_alg(struct crypto_alg *alg)
ret = -EEXIST;
atomic_set(&alg->cra_refcnt, 1);
list_for_each_entry(q, &crypto_alg_list, cra_list) {
if (q == alg)
goto err;