iommu/exynos: use list_del_init instead of list_del/INIT_LIST_HEAD

Using list_del_init() instead of list_del() + INIT_LIST_HEAD().

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: Joerg Roedel <joerg.roedel@amd.com>

diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index 80bad32aa46394443ad5a0aaa4a241c4e0e4b2c0..7fe44f83cc371043788885d3fb3bfdc7f6b091ad 100644 (file)
--- a/drivers/iommu/exynos-iommu.c
+++ b/drivers/iommu/exynos-iommu.c
@@ -840,8 +840,7 @@ static void exynos_iommu_detach_device(struct iommu_domain *domain,
        if (__exynos_sysmmu_disable(data)) {
                dev_dbg(dev, "%s: Detached IOMMU with pgtable %#lx\n",
                                        __func__, __pa(priv->pgtable));
-               list_del(&data->node);
-               INIT_LIST_HEAD(&data->node);
+               list_del_init(&data->node);
 
        } else {
                dev_dbg(dev, "%s: Detaching IOMMU with pgtable %#lx delayed",