From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Wed, 11 May 2011 20:40:45 +0000 (+0200)
Subject: PM / Wakeup: Remove useless synchronize_rcu() call
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=13e381365614855bf14c8ad68f9b65e3afd3dd2c;p=mv-sheeva.git

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 abbbd33e8d8..84f7c7d5a09 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);