From 13e381365614855bf14c8ad68f9b65e3afd3dd2c Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Wed, 11 May 2011 22:40:45 +0200
Subject: PM / Wakeup: Remove useless synchronize_rcu() call

wakeup_source_add() adds an item into wakeup_sources list.

There is no need to call synchronize_rcu() at this point.

Its only needed in wakeup_source_remove()

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
index abbbd33..84f7c7d 100644
--- a/drivers/base/power/wakeup.c
+++ b/drivers/base/power/wakeup.c
@@ -110,7 +110,6 @@ void wakeup_source_add(struct wakeup_source *ws)
 	spin_lock_irq(&events_lock);
 	list_add_rcu(&ws->entry, &wakeup_sources);
 	spin_unlock_irq(&events_lock);
-	synchronize_rcu();
 }
 EXPORT_SYMBOL_GPL(wakeup_source_add);
 
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