212,218c212
< 	/* struct sembuf	sem_lock = { *mutex, -1, SEM_UNDO }; */
< 
< 	struct sembuf	sem_lock;
< 
< 	sem_lock.sem_num = *mutex;
< 	sem_lock.sem_op = -1;
< 	sem_lock.sem_flg = SEM_UNDO;
---
> 	struct sembuf	sem_lock = { *mutex, -1, SEM_UNDO };
267,273c261
<  	/* struct sembuf  sem_unlock = { *mutex, 1, SEM_UNDO }; */
< 	struct sembuf	sem_unlock;
< 
< 	sem_unlock.sem_num = *mutex;
< 	sem_unlock.sem_op = 1;
< 	sem_unlock.sem_flg = SEM_UNDO;
< 
---
> 	struct sembuf	sem_unlock = { *mutex, 1, SEM_UNDO };