[PATCH] viommu: return error code for unknown probe type

[flyingpenghao]

From: Peng Hao <flyingp...@tencent.com>

If the probe types processed by the loop are all unknown,
no error will be returned.

Signed-off-by: Peng Hao <flyingp...@tencent.com>
---
 drivers/iommu/virtio-iommu.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c
index 04048f64a2c0..80352505b762 100644
--- a/drivers/iommu/virtio-iommu.c
+++ b/drivers/iommu/virtio-iommu.c
@@ -555,6 +555,7 @@ static int viommu_probe_endpoint(struct viommu_dev *viommu, 
struct device *dev)
                        break;
                default:
                        dev_err(dev, "unknown viommu prop 0x%x\n", type);
+                       ret = -EINVAL;
                }
 
                if (ret)
-- 
2.31.1