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SubjectRe: [Xen-devel] [PATCH] xen/arm: Return correct code error for xen_swiotlb_map_page
On Thu, 6 Nov 2014, Frediano Ziglio wrote:
> 2014-11-06 17:30 GMT+00:00 Stefano Stabellini <stefano.stabellini@eu.citrix.com>:
> 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?
>
>
> Same patch or another ?
>

Another

>  
> >  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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