Hi Yingliang, On 2020/11/17 10:52, Yang Yingliang wrote:
If iommu_group_get() failed, it need return error code in iommu_probe_device().Fixes: cf193888bfbd ("iommu: Move new probe_device path...") Reported-by: Hulk Robot <hul...@huawei.com> Signed-off-by: Yang Yingliang <yangyingli...@huawei.com> --- drivers/iommu/iommu.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index b53446bb8c6b..6f4a32df90f6 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -253,8 +253,10 @@ int iommu_probe_device(struct device *dev) goto err_out;group = iommu_group_get(dev);- if (!group) + if (!group) { + ret = -ENODEV;
Can you please explain why you use -ENODEV here? Best regards, baolu
goto err_release; + }/** Try to allocate a default domain - needs support from the
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