linux-kernel - [PATCH] ALSA: use list_move_tail instead of list_del/list_add

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Date:	Wed, 5 Sep 2012 15:00:15 +0800
From:	Wei Yongjun <weiyj.lk@...il.com>
To:	perex@...ex.cz, tiwai@...e.de
Cc:	yongjun_wei@...ndmicro.com.cn, alsa-devel@...a-project.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] ALSA: use list_move_tail instead of list_del/list_add_tail

From: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>

Using list_move_tail() instead of list_del() + list_add_tail().

Signed-off-by: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>
---
 sound/pci/emu10k1/memory.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/pci/emu10k1/memory.c b/sound/pci/emu10k1/memory.c
index 0a43662..1dce0a39 100644
--- a/sound/pci/emu10k1/memory.c
+++ b/sound/pci/emu10k1/memory.c
@@ -263,8 +263,8 @@ int snd_emu10k1_memblk_map(struct snd_emu10k1 *emu, struct snd_emu10k1_memblk *b
 	spin_lock_irqsave(&emu->memblk_lock, flags);
 	if (blk->mapped_page >= 0) {
 		/* update order link */
-		list_del(&blk->mapped_order_link);
-		list_add_tail(&blk->mapped_order_link, &emu->mapped_order_link_head);
+		list_move_tail(&blk->mapped_order_link,
+			       &emu->mapped_order_link_head);
 		spin_unlock_irqrestore(&emu->memblk_lock, flags);
 		return 0;
 	}


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