[Xen-devel] [PATCH] xen/arm: Return correct code error for xen_swiotlb_map_page

[Frediano Ziglio <frediano.ziglio@xxxxxxxxxx>]

On ARM error code is not 0 so avoid to return it as error.

Signed-off-by: Frediano Ziglio <frediano.ziglio@xxxxxxxxxx>
---
 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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