diff options
| -rw-r--r-- | sys/kern/sysv_sem.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sys/kern/sysv_sem.c b/sys/kern/sysv_sem.c index bea7832..80d07ba 100644 --- a/sys/kern/sysv_sem.c +++ b/sys/kern/sysv_sem.c @@ -1167,6 +1167,13 @@ semop(td, uap) } /* + * Renew the semaphore's pointer after wakeup since + * during msleep sem_base may have been modified and semptr + * is not valid any more + */ + semptr = &semakptr->u.sem_base[sopptr->sem_num]; + + /* * The semaphore is still alive. Readjust the count of * waiting processes. */ |
