392 	struct key *mkey = ERR_PTR(-EINVAL);  in request_master_key()  local
396 		mkey = request_trusted_key(epayload->master_desc +  in request_master_key()
401 		mkey = request_user_key(epayload->master_desc +  in request_master_key()
407 	if (IS_ERR(mkey)) {  in request_master_key()
408 		int ret = PTR_ERR(mkey);  in request_master_key()
421 	return mkey;  in request_master_key()
656 	struct key *mkey;  in encrypted_key_decrypt()  local
686 	mkey = request_master_key(epayload, &master_key, &master_keylen);  in encrypted_key_decrypt()
687 	if (IS_ERR(mkey))  in encrypted_key_decrypt()
688 		return PTR_ERR(mkey);  in encrypted_key_decrypt()
704 	up_read(&mkey->sem);  in encrypted_key_decrypt()
705 	key_put(mkey);  in encrypted_key_decrypt()
909 	struct key *mkey;  in encrypted_read()  local
927 	mkey = request_master_key(epayload, &master_key, &master_keylen);  in encrypted_read()
928 	if (IS_ERR(mkey))  in encrypted_read()
929 		return PTR_ERR(mkey);  in encrypted_read()
949 	up_read(&mkey->sem);  in encrypted_read()
950 	key_put(mkey);  in encrypted_read()
958 	up_read(&mkey->sem);  in encrypted_read()
959 	key_put(mkey);  in encrypted_read()