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path: root/crypto/asymmetric_keys/asym_tpm.c
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Diffstat (limited to 'crypto/asymmetric_keys/asym_tpm.c')
-rw-r--r--crypto/asymmetric_keys/asym_tpm.c10
1 files changed, 1 insertions, 9 deletions
diff --git a/crypto/asymmetric_keys/asym_tpm.c b/crypto/asymmetric_keys/asym_tpm.c
index 4e5b6fb57a94..402fc34ca044 100644
--- a/crypto/asymmetric_keys/asym_tpm.c
+++ b/crypto/asymmetric_keys/asym_tpm.c
@@ -748,7 +748,6 @@ static int tpm_key_verify_signature(const struct key *key,
char alg_name[CRYPTO_MAX_ALG_NAME];
uint8_t der_pub_key[PUB_KEY_BUF_SIZE];
uint32_t der_pub_key_len;
- void *digest;
int ret;
pr_devel("==>%s()\n", __func__);
@@ -780,14 +779,9 @@ static int tpm_key_verify_signature(const struct key *key,
if (!req)
goto error_free_tfm;
- ret = -ENOMEM;
- digest = kmemdup(sig->digest, sig->digest_size, GFP_KERNEL);
- if (!digest)
- goto error_free_req;
-
sg_init_table(src_sg, 2);
sg_set_buf(&src_sg[0], sig->s, sig->s_size);
- sg_set_buf(&src_sg[1], digest, sig->digest_size);
+ sg_set_buf(&src_sg[1], sig->digest, sig->digest_size);
akcipher_request_set_crypt(req, src_sg, NULL, sig->s_size,
sig->digest_size);
crypto_init_wait(&cwait);
@@ -796,8 +790,6 @@ static int tpm_key_verify_signature(const struct key *key,
crypto_req_done, &cwait);
ret = crypto_wait_req(crypto_akcipher_verify(req), &cwait);
- kfree(digest);
-error_free_req:
akcipher_request_free(req);
error_free_tfm:
crypto_free_akcipher(tfm);