Commit 23357572 authored by Yong Wu's avatar Yong Wu Committed by Will Deacon
Browse files

iommu/mediatek: Remove unnecessary check in attach_device 



This priv_data is set in the of_xlate. if of_xlate failed, it should
not enter attach_device. remove the unnecessary check.

Signed-off-by: default avatarYong Wu <yong.wu@mediatek.com>
Reviewed-by: default avatarTomasz Figa <tfiga@chromium.org>
Link: https://lore.kernel.org/r/20210111111914.22211-32-yong.wu@mediatek.com


Signed-off-by: default avatarWill Deacon <will@kernel.org>
parent 8d2c749e

drivers/iommu/mtk_iommu.c

+0 −6
Original line number Diff line number Diff line
@@ -453,9 +453,6 @@ static int mtk_iommu_attach_device(struct iommu_domain *domain, 
	struct device *m4udev = data->dev;

	int ret, domid;



	if (!data)

		return -ENODEV;



	domid = mtk_iommu_get_domain_id(dev, data->plat_data);

	if (domid < 0)

		return domid;
@@ -492,9 +489,6 @@ static void mtk_iommu_detach_device(struct iommu_domain *domain, 
{

	struct mtk_iommu_data *data = dev_iommu_priv_get(dev);



	if (!data)

		return;



	mtk_iommu_config(data, dev, false, 0);

}