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-rw-r--r--kernel/acct.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/kernel/acct.c b/kernel/acct.c
index dc12db8600e7..ca5619039367 100644
--- a/kernel/acct.c
+++ b/kernel/acct.c
@@ -428,6 +428,7 @@ static void do_acct_process(struct file *file)
u64 elapsed;
u64 run_time;
struct timespec uptime;
+ struct tty_struct *tty;
/*
* First check to see if there is enough free_space to continue
@@ -485,12 +486,8 @@ static void do_acct_process(struct file *file)
#endif
mutex_lock(&tty_mutex);
- /* FIXME: Whoever is responsible for current->signal locking needs
- to use the same locking all over the kernel and document it */
- read_lock(&tasklist_lock);
- ac.ac_tty = current->signal->tty ?
- old_encode_dev(tty_devnum(current->signal->tty)) : 0;
- read_unlock(&tasklist_lock);
+ tty = get_current_tty();
+ ac.ac_tty = tty ? old_encode_dev(tty_devnum(tty)) : 0;
mutex_unlock(&tty_mutex);
spin_lock_irq(&current->sighand->siglock);