Commit 9cd22323 authored by Leilei Zhao's avatar Leilei Zhao Committed by Herbert Xu
Browse files

crypto: atmel-aes - correct usage of dma_sync_* API

The output buffer is used for CPU access, so
the API should be dma_sync_single_for_cpu which
makes the cache line invalid in order to reload
the value in memory.
Signed-off-by: default avatarLeilei Zhao <>
Acked-by: default avatarNicolas Ferre <>
Signed-off-by: default avatarHerbert Xu <>
parent 289b2623
......@@ -627,7 +627,7 @@ static int atmel_aes_crypt_dma_stop(struct atmel_aes_dev *dd)
dma_unmap_sg(dd->dev, dd->out_sg, 1, DMA_FROM_DEVICE);
dma_unmap_sg(dd->dev, dd->in_sg, 1, DMA_TO_DEVICE);
} else {
dma_sync_single_for_device(dd->dev, dd->dma_addr_out,
dma_sync_single_for_cpu(dd->dev, dd->dma_addr_out,
dd->dma_size, DMA_FROM_DEVICE);
/* copy data */
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