vfio: check iommu_group_set_name() return value

As iommu_group_set_name() can fail, we should check the return value.

Signed-off-by: Liam Ni <[email protected]>
Reviewed-by: Jason Gunthorpe <[email protected]>
Reviewed-by: Kevin Tian <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Alex Williamson <[email protected]>

Author: Liam Ni

drivers/vfio/vfio.c

@@ -504,7 +504,9 @@ static struct vfio_group *vfio_noiommu_group_alloc(struct device *dev,
 	if (IS_ERR(iommu_group))
 		return ERR_CAST(iommu_group);
 
-	iommu_group_set_name(iommu_group, "vfio-noiommu");
+	ret = iommu_group_set_name(iommu_group, "vfio-noiommu");
+	if (ret)
+		goto out_put_group;
 	ret = iommu_group_add_device(iommu_group, dev);
 	if (ret)
 		goto out_put_group;