413 	struct key *mkey = ERR_PTR(-EINVAL);  in request_master_key()  local
417 		mkey = request_trusted_key(epayload->master_desc +  in request_master_key()
422 		mkey = request_user_key(epayload->master_desc +  in request_master_key()
428 	if (IS_ERR(mkey)) {  in request_master_key()
429 		int ret = PTR_ERR(mkey);  in request_master_key()
442 	return mkey;  in request_master_key()
658 	struct key *mkey;  in encrypted_key_decrypt()  local
688 	mkey = request_master_key(epayload, &master_key, &master_keylen);  in encrypted_key_decrypt()
689 	if (IS_ERR(mkey))  in encrypted_key_decrypt()
690 		return PTR_ERR(mkey);  in encrypted_key_decrypt()
706 	up_read(&mkey->sem);  in encrypted_key_decrypt()
707 	key_put(mkey);  in encrypted_key_decrypt()
904 	struct key *mkey;  in encrypted_read()  local
922 	mkey = request_master_key(epayload, &master_key, &master_keylen);  in encrypted_read()
923 	if (IS_ERR(mkey))  in encrypted_read()
924 		return PTR_ERR(mkey);  in encrypted_read()
944 	up_read(&mkey->sem);  in encrypted_read()
945 	key_put(mkey);  in encrypted_read()
953 	up_read(&mkey->sem);  in encrypted_read()
954 	key_put(mkey);  in encrypted_read()