431 	struct key *mkey = NULL;  in request_master_key()  local
435 		mkey = request_trusted_key(epayload->master_desc +  in request_master_key()
440 		mkey = request_user_key(epayload->master_desc +  in request_master_key()
446 	if (IS_ERR(mkey)) {  in request_master_key()
447 		int ret = PTR_ERR(mkey);  in request_master_key()
460 	return mkey;  in request_master_key()
654 	struct key *mkey;  in encrypted_key_decrypt()  local
684 	mkey = request_master_key(epayload, &master_key, &master_keylen);  in encrypted_key_decrypt()
685 	if (IS_ERR(mkey))  in encrypted_key_decrypt()
686 		return PTR_ERR(mkey);  in encrypted_key_decrypt()
702 	up_read(&mkey->sem);  in encrypted_key_decrypt()
703 	key_put(mkey);  in encrypted_key_decrypt()
900 	struct key *mkey;  in encrypted_read()  local
918 	mkey = request_master_key(epayload, &master_key, &master_keylen);  in encrypted_read()
919 	if (IS_ERR(mkey))  in encrypted_read()
920 		return PTR_ERR(mkey);  in encrypted_read()
940 	up_read(&mkey->sem);  in encrypted_read()
941 	key_put(mkey);  in encrypted_read()
949 	up_read(&mkey->sem);  in encrypted_read()
950 	key_put(mkey);  in encrypted_read()