33 	int res = 0;  in derive_key_aes()  local
40 		res = PTR_ERR(tfm);  in derive_key_aes()
47 		res = -ENOMEM;  in derive_key_aes()
53 	res = crypto_skcipher_setkey(tfm, deriving_key,  in derive_key_aes()
55 	if (res < 0)  in derive_key_aes()
62 	res = crypto_wait_req(crypto_skcipher_encrypt(req), &wait);  in derive_key_aes()
66 	return res;  in derive_key_aes()
77 	int res;  in validate_user_key()  local
94 		res = -ENOKEY;  in validate_user_key()
100 		res = -EKEYREVOKED;  in validate_user_key()
104 		res = -EINVAL;  in validate_user_key()
115 		res = -ENOKEY;  in validate_user_key()
118 	res = derive_key_aes(ctx->nonce, master_key, raw_key);  in validate_user_key()
122 	return res;  in validate_user_key()
252 	int res;  in fscrypt_get_encryption_info()  local
257 	res = fscrypt_initialize(inode->i_sb->s_cop->flags);  in fscrypt_get_encryption_info()
258 	if (res)  in fscrypt_get_encryption_info()
259 		return res;  in fscrypt_get_encryption_info()
261 	res = inode->i_sb->s_cop->get_context(inode, &ctx, sizeof(ctx));  in fscrypt_get_encryption_info()
262 	if (res < 0) {  in fscrypt_get_encryption_info()
265 			return res;  in fscrypt_get_encryption_info()
272 	} else if (res != sizeof(ctx)) {  in fscrypt_get_encryption_info()
294 	res = determine_cipher_type(crypt_info, inode, &cipher_str, &keysize);  in fscrypt_get_encryption_info()
295 	if (res)  in fscrypt_get_encryption_info()
302 	res = -ENOMEM;  in fscrypt_get_encryption_info()
307 	res = validate_user_key(crypt_info, &ctx, raw_key, FS_KEY_DESC_PREFIX,  in fscrypt_get_encryption_info()
309 	if (res && inode->i_sb->s_cop->key_prefix) {  in fscrypt_get_encryption_info()
315 				res = -ENOKEY;  in fscrypt_get_encryption_info()
318 	} else if (res) {  in fscrypt_get_encryption_info()
323 		res = ctfm ? PTR_ERR(ctfm) : -ENOMEM;  in fscrypt_get_encryption_info()
325 			 __func__, res, inode->i_ino);  in fscrypt_get_encryption_info()
335 	res = crypto_skcipher_setkey(ctfm, raw_key, keysize);  in fscrypt_get_encryption_info()
336 	if (res)  in fscrypt_get_encryption_info()
341 		res = init_essiv_generator(crypt_info, raw_key, keysize);  in fscrypt_get_encryption_info()
342 		if (res) {  in fscrypt_get_encryption_info()
344 				 __func__, res, inode->i_ino);  in fscrypt_get_encryption_info()
351 	if (res == -ENOKEY)  in fscrypt_get_encryption_info()
352 		res = 0;  in fscrypt_get_encryption_info()
355 	return res;  in fscrypt_get_encryption_info()