From: "Eric W. Biederman" <ebied...@xmission.com>

Now that netlink messages are processed in the context of the sender
tty_audit_push_task can be called directly and audit_prepare_user_tty
which only added looking up the task of the tty by process id is
not needed.

Cc: Al Viro <v...@zeniv.linux.org.uk>
Cc: Eric Paris <epa...@redhat.com>
Signed-off-by: "Eric W. Biederman" <ebied...@xmission.com>
---
 kernel/audit.c |   20 +-------------------
 1 files changed, 1 insertions(+), 19 deletions(-)

diff --git a/kernel/audit.c b/kernel/audit.c
index fecb150..58f704b 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -468,24 +468,6 @@ static int kauditd_thread(void *dummy)
        return 0;
 }
 
-static int audit_prepare_user_tty(pid_t pid, uid_t loginuid, u32 sessionid)
-{
-       struct task_struct *tsk;
-       int err;
-
-       rcu_read_lock();
-       tsk = find_task_by_vpid(pid);
-       if (!tsk) {
-               rcu_read_unlock();
-               return -ESRCH;
-       }
-       get_task_struct(tsk);
-       rcu_read_unlock();
-       err = tty_audit_push_task(tsk, loginuid, sessionid);
-       put_task_struct(tsk);
-       return err;
-}
-
 int audit_send_list(void *_dest)
 {
        struct audit_netlink_list *dest = _dest;
@@ -748,7 +730,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct 
nlmsghdr *nlh)
                if (err == 1) {
                        err = 0;
                        if (msg_type == AUDIT_USER_TTY) {
-                               err = audit_prepare_user_tty(pid, loginuid,
+                               err = tty_audit_push_task(current, loginuid,
                                                             sessionid);
                                if (err)
                                        break;
-- 
1.7.5.4

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