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tty: serial: replace del_timer by del_timer_sync

Browse source 
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>
This commit is contained in:
Julia Lawall 2014-03-26 22:33:42 +01:00 committed by Greg Kroah-Hartman
parent 22766ed8a2
commit 0f1e126b8c
1 changed files with 1 additions and 1 deletions
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2
drivers/tty/serial/mux.c
View file

@ -613,7 +613,7 @@ static void __exit mux_exit(void)
{
/* Delete the Mux timer. */
if(port_cnt > 0) {
del_timer(&mux_timer);
del_timer_sync(&mux_timer);
#ifdef CONFIG_SERIAL_MUX_CONSOLE
unregister_console(&mux_console);
#endif