linux-kernel - [PATCH] timerqueue: use rb_entry

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Date:   Tue, 20 Dec 2016 21:57:44 +0800
From:   Geliang Tang <geliangtang@...il.com>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        John Stultz <john.stultz@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>
Cc:     Geliang Tang <geliangtang@...il.com>, linux-kernel@...r.kernel.org
Subject: [PATCH] timerqueue: use rb_entry_safe

Use rb_entry_safe() instead of open-coding it.

Signed-off-by: Geliang Tang <geliangtang@...il.com>
---
 lib/timerqueue.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/lib/timerqueue.c b/lib/timerqueue.c
index 782ae8c..3debca0 100644
--- a/lib/timerqueue.c
+++ b/lib/timerqueue.c
@@ -80,8 +80,7 @@ bool timerqueue_del(struct timerqueue_head *head, struct timerqueue_node *node)
 	if (head->next == node) {
 		struct rb_node *rbn = rb_next(&node->node);
 
-		head->next = rbn ?
-			rb_entry(rbn, struct timerqueue_node, node) : NULL;
+		head->next = rb_entry_safe(rbn, struct timerqueue_node, node);
 	}
 	rb_erase(&node->node, &head->head);
 	RB_CLEAR_NODE(&node->node);
-- 
2.9.3