From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Wed, 5 Sep 2012 06:40:43 +0000 (+0800)
Subject: vmlfb: use list_move_tail instead of list_del/list_add_tail
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=2636ff6b0df904cf1c982f580860204a386d177f;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

vmlfb: use list_move_tail instead of list_del/list_add_tail

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

spatch with a semantic match is used to found this problem.
(http://coccinelle.lip6.fr/)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
---

diff --git a/drivers/video/vermilion/vermilion.c b/drivers/video/vermilion/vermilion.c
index 970e43d13f52..083f0c844892 100644
--- a/drivers/video/vermilion/vermilion.c
+++ b/drivers/video/vermilion/vermilion.c
@@ -1168,8 +1168,7 @@ void vmlfb_unregister_subsys(struct vml_sys *sys)
 	list_for_each_entry_safe(entry, next, &global_has_mode, head) {
 		printk(KERN_DEBUG MODULE_NAME ": subsys disable pipe\n");
 		vmlfb_disable_pipe(entry);
-		list_del(&entry->head);
-		list_add_tail(&entry->head, &global_no_mode);
+		list_move_tail(&entry->head, &global_no_mode);
 	}
 	mutex_unlock(&vml_mutex);
 }