As iommu_device_sysfs_add() can fail, we should check the return value.
Signed-off-by: Bo Liu <liub...@inspur.com>
---
drivers/iommu/amd/init.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c
index 3c82d9c5f1c0..a3c4fdd40f04 100644
--- a/drivers/iommu/amd/init.c
+++ b/drivers/iommu/amd/init.c
@@ -2058,8 +2058,11 @@ static int __init iommu_init_pci(struct amd_iommu *iommu)
amd_iommu_erratum_746_workaround(iommu);
amd_iommu_ats_write_check_workaround(iommu);
- iommu_device_sysfs_add(&iommu->iommu, &iommu->dev->dev,
+ ret = iommu_device_sysfs_add(&iommu->iommu, &iommu->dev->dev,
amd_iommu_groups, "ivhd%d", iommu->index);
+ if (ret)
+ return ret;
+
iommu_device_register(&iommu->iommu, &amd_iommu_ops, NULL);
return pci_enable_device(iommu->dev);
--
2.27.0
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