From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Mon, 23 Sep 2013 06:16:22 +0000 (+0800)
Subject: USB: WUSBCORE: use list_move_tail instead of list_del/list_add_tail
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=8eb4129929e9eb563fbab807a2b274d32042d034;p=linux-beck.git

USB: WUSBCORE: use list_move_tail instead of list_del/list_add_tail

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

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
index 6ad02f57c366..cf1097963f8b 100644
--- a/drivers/usb/wusbcore/wa-xfer.c
+++ b/drivers/usb/wusbcore/wa-xfer.c
@@ -1552,10 +1552,8 @@ error_complete:
 
 		dev_info(dev, "Control EP stall.  Queue delayed work.\n");
 		spin_lock_irq(&wa->xfer_list_lock);
-		/* remove xfer from xfer_list. */
-		list_del(&xfer->list_node);
-		/* add xfer to xfer_errored_list. */
-		list_add_tail(&xfer->list_node, &wa->xfer_errored_list);
+		/* move xfer from xfer_list to xfer_errored_list. */
+		list_move_tail(&xfer->list_node, &wa->xfer_errored_list);
 		spin_unlock_irq(&wa->xfer_list_lock);
 		spin_unlock_irqrestore(&xfer->lock, flags);
 		queue_work(wusbd, &wa->xfer_error_work);