On 2022/6/24 04:00, Nicolin Chen wrote:
diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c index e1cb51b9866c..5386d889429d 100644 --- a/drivers/iommu/mtk_iommu_v1.c +++ b/drivers/iommu/mtk_iommu_v1.c @@ -304,7 +304,7 @@ static int mtk_iommu_v1_attach_device(struct iommu_domain *domain, struct device /* Only allow the domain created internally. */ mtk_mapping = data->mapping; if (mtk_mapping->domain != domain) - return 0; + return -EMEDIUMTYPE;if (!data->m4u_dom) {data->m4u_dom = dom;
This change looks odd. It turns the return value from success to failure. Is it a bug? If so, it should go through a separated fix patch. Best regards, baolu _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
