diff options
| -rw-r--r-- | ipc/sem.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/ipc/sem.c b/ipc/sem.c index 10b94bc59d4a..b33dd98fde69 100644 --- a/ipc/sem.c +++ b/ipc/sem.c @@ -1887,16 +1887,22 @@ SYSCALL_DEFINE4(semtimedop, int, semid, struct sembuf __user *, tsops, } error = -EFBIG; - if (max >= sma->sem_nsems) - goto out_rcu_wakeup; + if (max >= sma->sem_nsems) { + rcu_read_unlock(); + goto out_free; + } error = -EACCES; - if (ipcperms(ns, &sma->sem_perm, alter ? S_IWUGO : S_IRUGO)) - goto out_rcu_wakeup; + if (ipcperms(ns, &sma->sem_perm, alter ? S_IWUGO : S_IRUGO)) { + rcu_read_unlock(); + goto out_free; + } error = security_sem_semop(sma, sops, nsops, alter); - if (error) - goto out_rcu_wakeup; + if (error) { + rcu_read_unlock(); + goto out_free; + } error = -EIDRM; locknum = sem_lock(sma, sops, nsops); @@ -2039,7 +2045,6 @@ sleep_again: out_unlock_free: sem_unlock(sma, locknum); -out_rcu_wakeup: rcu_read_unlock(); wake_up_sem_queue_do(&tasks); out_free: |