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-rw-r--r--arch/nds32/kernel/dma.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/nds32/kernel/dma.c b/arch/nds32/kernel/dma.c
index e0c94a2889c5..b9973317c734 100644
--- a/arch/nds32/kernel/dma.c
+++ b/arch/nds32/kernel/dma.c
@@ -458,6 +458,12 @@ static void nds32_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
int nhwentries, enum dma_data_direction dir,
unsigned long attrs)
{
+ int i;
+
+ for (i = 0; i < nhwentries; i++, sg++) {
+ nds32_dma_sync_single_for_cpu(dev, sg_dma_address(sg),
+ sg->length, dir);
+ }
}
struct dma_map_ops nds32_dma_ops = {