tpm: Fix memory leak in encode_tpmkey_url

When returning the key URL in encode_tpm_key_url we do not need to allocate
a separate buffer for the URL since we return the allocated buffer from
_gnutls_buffer_to_datum().

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>

1 files changed, 0 insertions, 5 deletions

diff --git a/lib/tpm.c b/lib/tpm.c
index ee53c71540..95bed111af 100644
--- a/lib/tpm.c
+++ b/lib/tpm.c
@@ -839,16 +839,11 @@ static int randomize_uuid(TSS_UUID * uuid)
 static int encode_tpmkey_url(char **url, const TSS_UUID * uuid,
 			     TSS_FLAG storage)
 {
-	size_t size = (UUID_SIZE * 2 + 4) * 2 + 32;
 	uint8_t u1[UUID_SIZE];
 	gnutls_buffer_st buf;
 	gnutls_datum_t dret;
 	int ret;
 
-	*url = gnutls_malloc(size);
-	if (*url == NULL)
-		return gnutls_assert_val(GNUTLS_E_MEMORY_ERROR);
-
 	_gnutls_buffer_init(&buf);
 
 	memcpy(u1, &uuid->ulTimeLow, 4);