[RFC][PATCH v3 07/33] timers: PM: Use timer_shutdown_sync()

[Steven Rostedt]

From: "Steven Rostedt (Google)" <rostedt@xxxxxxxxxxx>

Instead of open coding making the timer look like it was not registered by
setting the function pointer to NULL, call timer_shutdown_sync() that does
the same thing.

Link: https://lore.kernel.org/all/20220407161745.7d6754b3@xxxxxxxxxxxxxxxxxx/

Cc: "Rafael J. Wysocki" <rafael@xxxxxxxxxx>
Cc: Len Brown <len.brown@xxxxxxxxx>
Cc: Pavel Machek <pavel@xxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: linux-pm@xxxxxxxxxxxxxxx
Signed-off-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx>
---
 drivers/base/power/wakeup.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
index 7cc0c0cf8eaa..c6d68bdcac68 100644
--- a/drivers/base/power/wakeup.c
+++ b/drivers/base/power/wakeup.c
@@ -202,12 +202,7 @@ void wakeup_source_remove(struct wakeup_source *ws)
 	raw_spin_unlock_irqrestore(&events_lock, flags);
 	synchronize_srcu(&wakeup_srcu);
 
-	del_timer_sync(&ws->timer);
-	/*
-	 * Clear timer.function to make wakeup_source_not_registered() treat
-	 * this wakeup source as not registered.
-	 */
-	ws->timer.function = NULL;
+	timer_shutdown_sync(&ws->timer);
 }
 EXPORT_SYMBOL_GPL(wakeup_source_remove);
 
-- 
2.35.1