added libtomcrypt-1.05

src/misc/crypt/crypt_unregister_cipher.c

@@ -27,13 +27,16 @@ int unregister_cipher(const struct ltc_cipher_descriptor *cipher)
    LTC_ARGCHK(cipher != NULL);
 
    /* is it already registered? */
+   LTC_MUTEX_LOCK(&ltc_cipher_mutex);
    for (x = 0; x < TAB_SIZE; x++) {
        if (memcmp(&cipher_descriptor[x], cipher, sizeof(struct ltc_cipher_descriptor)) == 0) {
           cipher_descriptor[x].name = NULL;
           cipher_descriptor[x].ID   = 255;
+          LTC_MUTEX_UNLOCK(&ltc_cipher_mutex);
           return CRYPT_OK;
        }
    }
+   LTC_MUTEX_UNLOCK(&ltc_cipher_mutex);
    return CRYPT_ERROR;
 }