Re: [PATCH v1 14/16] x86/amd_gart: return error code from gart_map_sg()

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On Thu, Jul 15, 2021 at 10:45:42AM -0600, Logan Gunthorpe wrote:
> @@ -458,7 +460,7 @@ static int gart_map_sg(struct device *dev, struct scatterlist *sg, int nents,
>  	iommu_full(dev, pages << PAGE_SHIFT, dir);
>  	for_each_sg(sg, s, nents, i)
>  		s->dma_address = DMA_MAPPING_ERROR;
> -	return 0;
> +	return ret;

While we're at it - setting the ->dma_address to DMA_MAPPING_ERROR is
not part of the ->map_sg calling convention.  Might be worth to fix
up while we're at it.



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