diff options
| -rw-r--r-- | crypto/gcm.c | 37 |
1 files changed, 12 insertions, 25 deletions
diff --git a/crypto/gcm.c b/crypto/gcm.c index 5560341e2810..0103d28c541e 100644 --- a/crypto/gcm.c +++ b/crypto/gcm.c @@ -1060,10 +1060,8 @@ static int crypto_rfc4543_create(struct crypto_template *tmpl, struct crypto_attr_type *algt; u32 mask; struct aead_instance *inst; - struct crypto_aead_spawn *spawn; struct aead_alg *alg; struct crypto_rfc4543_instance_ctx *ctx; - const char *ccm_name; int err; algt = crypto_get_attr_type(tb); @@ -1075,32 +1073,27 @@ static int crypto_rfc4543_create(struct crypto_template *tmpl, mask = crypto_requires_sync(algt->type, algt->mask); - ccm_name = crypto_attr_alg_name(tb[1]); - if (IS_ERR(ccm_name)) - return PTR_ERR(ccm_name); - inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL); if (!inst) return -ENOMEM; ctx = aead_instance_ctx(inst); - spawn = &ctx->aead; - err = crypto_grab_aead(spawn, aead_crypto_instance(inst), - ccm_name, 0, mask); + err = crypto_grab_aead(&ctx->aead, aead_crypto_instance(inst), + crypto_attr_alg_name(tb[1]), 0, mask); if (err) - goto out_free_inst; + goto err_free_inst; - alg = crypto_spawn_aead_alg(spawn); + alg = crypto_spawn_aead_alg(&ctx->aead); err = -EINVAL; /* Underlying IV size must be 12. */ if (crypto_aead_alg_ivsize(alg) != GCM_AES_IV_SIZE) - goto out_drop_alg; + goto err_free_inst; /* Not a stream cipher? */ if (alg->base.cra_blocksize != 1) - goto out_drop_alg; + goto err_free_inst; err = -ENAMETOOLONG; if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME, @@ -1109,7 +1102,7 @@ static int crypto_rfc4543_create(struct crypto_template *tmpl, snprintf(inst->alg.base.cra_driver_name, CRYPTO_MAX_ALG_NAME, "rfc4543(%s)", alg->base.cra_driver_name) >= CRYPTO_MAX_ALG_NAME) - goto out_drop_alg; + goto err_free_inst; inst->alg.base.cra_flags = alg->base.cra_flags & CRYPTO_ALG_ASYNC; inst->alg.base.cra_priority = alg->base.cra_priority; @@ -1130,20 +1123,14 @@ static int crypto_rfc4543_create(struct crypto_template *tmpl, inst->alg.encrypt = crypto_rfc4543_encrypt; inst->alg.decrypt = crypto_rfc4543_decrypt; - inst->free = crypto_rfc4543_free, + inst->free = crypto_rfc4543_free; err = aead_register_instance(tmpl, inst); - if (err) - goto out_drop_alg; - -out: + if (err) { +err_free_inst: + crypto_rfc4543_free(inst); + } return err; - -out_drop_alg: - crypto_drop_aead(spawn); -out_free_inst: - kfree(inst); - goto out; } static struct crypto_template crypto_gcm_tmpls[] = { |