[PATCH RFC 04/17] acpi: Do not return struct iommu_ops from acpi_iommu_configure_id()

[Jason Gunthorpe]

On Fri, Nov 03, 2023 at 05:48:01PM -0700, Jerry Snitselaar wrote:
> > @@ -1632,10 +1633,15 @@ int acpi_dma_configure_id(struct device *dev, enum dev_dma_attr attr,
> >  
> >  	acpi_arch_dma_setup(dev);
> >  
> > -	iommu = acpi_iommu_configure_id(dev, input_id);
> > -	if (PTR_ERR(iommu) == -EPROBE_DEFER)
> > +	ret = acpi_iommu_configure_id(dev, input_id);
> > +	if (ret == -EPROBE_DEFER)
> >  		return -EPROBE_DEFER;
> >  
>                 return ret; ?

Maybe? Like this seemed to be a pattern in this code so I left it

> > +	/*
> > +	 * Historically this routine doesn't fail driver probing due to errors
> > +	 * in acpi_iommu_configure()
> 
>               acpi_iommu_configure_id()

Thanks

Jason