tty_io: fix remaining pid struct locking

[linux-2.6-block.git] / fs / proc / array.c

diff --git a/fs/proc/array.c b/fs/proc/array.c
index b07a71002f2f4280e27c58dba1dce5dae1c0047f..c135cbdd9127a550d6da103f66fa7cc47584b72e 100644 (file)
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -429,7 +429,9 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
                struct signal_struct *sig = task->signal;
 
                if (sig->tty) {
-                       tty_pgrp = pid_nr_ns(sig->tty->pgrp, ns);
+                       struct pid *pgrp = tty_get_pgrp(sig->tty);
+                       tty_pgrp = pid_nr_ns(pgrp, ns);
+                       put_pid(pgrp);
                        tty_nr = new_encode_dev(tty_devnum(sig->tty));
                }