linux-kernel - [PATCH 2/6] clockevent: simplify list operations

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Message-ID: <474E6BB4.7010501@cn.fujitsu.com>
Date:	Thu, 29 Nov 2007 15:35:16 +0800
From:	Li Zefan <lizf@...fujitsu.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	LKML <linux-kernel@...r.kernel.org>, tglx@...utronix.de
Subject: [PATCH 2/6] clockevent: simplify list operations


list_for_each_safe() suffices here.

Signed-off-by: Li Zefan <lizf@...fujitsu.com>

---
 kernel/time/clockevents.c |   11 ++++-------
 1 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c
index 822beeb..68fbe73 100644
--- a/kernel/time/clockevents.c
+++ b/kernel/time/clockevents.c
@@ -200,6 +200,8 @@ void clockevents_exchange_device(struct clock_event_device *old,
  */
 void clockevents_notify(unsigned long reason, void *arg)
 {
+	struct list_head *node, *tmp;
+
 	spin_lock(&clockevents_lock);
 	clockevents_do_notify(reason, arg);
 
@@ -209,13 +211,8 @@ void clockevents_notify(unsigned long reason, void *arg)
 		 * Unregister the clock event devices which were
 		 * released from the users in the notify chain.
 		 */
-		while (!list_empty(&clockevents_released)) {
-			struct clock_event_device *dev;
-
-			dev = list_entry(clockevents_released.next,
-					 struct clock_event_device, list);
-			list_del(&dev->list);
-		}
+		list_for_each_safe(node, tmp, &clockevents_released)
+			list_del(node);
 		break;
 	default:
 		break;
-- 
1.5.3.rc7

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