tty: serial: replace del_timer by del_timer_sync
authorJulia Lawall <Julia.Lawall@lip6.fr>
Wed, 26 Mar 2014 21:33:42 +0000 (22:33 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 24 Apr 2014 23:13:01 +0000 (16:13 -0700)
commit0f1e126b8c50a479a9047654f8ceda5ccfaa0d8a
treed18651bfde1c0c7064c52fb3b49cfb45b2f7e4a6
parent22766ed8a235f3c9043678c7c594afe683b2372f
tty: serial: replace del_timer by del_timer_sync

Use del_timer_sync to ensure that the timer is stopped on all CPUs before
the driver exists.

This change was suggested by Thomas Gleixner.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
declarer name module_exit;
identifier ex;
@@

module_exit(ex);

@@
identifier r.ex;
@@

ex(...) {
  <...
- del_timer
+ del_timer_sync
    (...)
  ...>
}
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/mux.c