Signed-off-by: Christoph Hellwig <h...@lst.de>
---
 include/asm-generic/dma-mapping-common.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/include/asm-generic/dma-mapping-common.h 
b/include/asm-generic/dma-mapping-common.h
index 940d5ec..afc3eaf 100644
--- a/include/asm-generic/dma-mapping-common.h
+++ b/include/asm-generic/dma-mapping-common.h
@@ -51,8 +51,10 @@ static inline int dma_map_sg_attrs(struct device *dev, 
struct scatterlist *sg,
        int i, ents;
        struct scatterlist *s;
 
-       for_each_sg(sg, s, nents, i)
-               kmemcheck_mark_initialized(sg_virt(s), s->length);
+       for_each_sg(sg, s, nents, i) {
+               if (sg_has_page(s))
+                       kmemcheck_mark_initialized(sg_virt(s), s->length);
+       }
        BUG_ON(!valid_dma_direction(dir));
        ents = ops->map_sg(dev, sg, nents, dir, attrs);
        BUG_ON(ents < 0);
-- 
1.9.1

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