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SubjectRe: [PATCH] xen/arm: Return correct code error for xen_swiotlb_map_page
On Thu, 6 Nov 2014, Frediano Ziglio wrote:
> On ARM error code is not 0 so avoid to return it as error.
>
> Signed-off-by: Frediano Ziglio <frediano.ziglio@huawei.com>

Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>


Could you please fix the same error in lib/swiotlb.c too please?

> drivers/xen/swiotlb-xen.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
> index ebd8f21..3b8d628 100644
> --- a/drivers/xen/swiotlb-xen.c
> +++ b/drivers/xen/swiotlb-xen.c
> @@ -425,7 +425,7 @@ dma_addr_t xen_swiotlb_map_page(struct device *dev, struct page *page,
> */
> if (!dma_capable(dev, dev_addr, size)) {
> swiotlb_tbl_unmap_single(dev, map, size, dir);
> - dev_addr = 0;
> + dev_addr = DMA_ERROR_CODE;
> }
> return dev_addr;
> }
> --
> 1.9.1
>
>
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