diff options
Diffstat (limited to 'crypto/sig.c')
| -rw-r--r-- | crypto/sig.c | 36 |
1 files changed, 24 insertions, 12 deletions
diff --git a/crypto/sig.c b/crypto/sig.c index be5ac0e59384..5e1f1f739da2 100644 --- a/crypto/sig.c +++ b/crypto/sig.c @@ -84,15 +84,6 @@ struct crypto_sig *crypto_alloc_sig(const char *alg_name, u32 type, u32 mask) } EXPORT_SYMBOL_GPL(crypto_alloc_sig); -static void sig_prepare_alg(struct sig_alg *alg) -{ - struct crypto_alg *base = &alg->base; - - base->cra_type = &crypto_sig_type; - base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK; - base->cra_flags |= CRYPTO_ALG_TYPE_SIG; -} - static int sig_default_sign(struct crypto_sig *tfm, const void *src, unsigned int slen, void *dst, unsigned int dlen) @@ -113,7 +104,7 @@ static int sig_default_set_key(struct crypto_sig *tfm, return -ENOSYS; } -int crypto_register_sig(struct sig_alg *alg) +static int sig_prepare_alg(struct sig_alg *alg) { struct crypto_alg *base = &alg->base; @@ -132,7 +123,22 @@ int crypto_register_sig(struct sig_alg *alg) if (!alg->digest_size) alg->digest_size = alg->key_size; - sig_prepare_alg(alg); + base->cra_type = &crypto_sig_type; + base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK; + base->cra_flags |= CRYPTO_ALG_TYPE_SIG; + + return 0; +} + +int crypto_register_sig(struct sig_alg *alg) +{ + struct crypto_alg *base = &alg->base; + int err; + + err = sig_prepare_alg(alg); + if (err) + return err; + return crypto_register_alg(base); } EXPORT_SYMBOL_GPL(crypto_register_sig); @@ -146,9 +152,15 @@ EXPORT_SYMBOL_GPL(crypto_unregister_sig); int sig_register_instance(struct crypto_template *tmpl, struct sig_instance *inst) { + int err; + if (WARN_ON(!inst->free)) return -EINVAL; - sig_prepare_alg(&inst->alg); + + err = sig_prepare_alg(&inst->alg); + if (err) + return err; + return crypto_register_instance(tmpl, sig_crypto_instance(inst)); } EXPORT_SYMBOL_GPL(sig_register_instance); |