| Message ID | 20210111111914.22211-32-yong.wu@mediatek.com |
|---|---|
| State | Accepted |
| Commit | 23357572bec6b7f900d855f6dda9c77bb6d1c2de |
| Headers | show |
| Series | MT8192 IOMMU support | expand |
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index 7403a7cb90ea..084fb4394ffc 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -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); }
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: Yong Wu <yong.wu@mediatek.com> --- drivers/iommu/mtk_iommu.c | 6 ------ 1 file changed, 6 deletions(-)