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authorLeilei Zhao <leilei.zhao@atmel.com>2015-04-07 12:45:11 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2015-04-08 17:20:05 +0300
commit9cd223239a79df3cc758ecabb8473ca91599021b (patch)
treec235d3ef0573aaa853b27d7b721e6ca9da410441 /drivers/crypto/atmel-aes.c
parent289b2623df34ebec4c25b7d31804b70fc90b92c6 (diff)
downloadlinux-9cd223239a79df3cc758ecabb8473ca91599021b.tar.xz
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: Leilei Zhao <leilei.zhao@atmel.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/atmel-aes.c')
-rw-r--r--drivers/crypto/atmel-aes.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/crypto/atmel-aes.c b/drivers/crypto/atmel-aes.c
index fb760664d28f..0f9a9dc06a83 100644
--- a/drivers/crypto/atmel-aes.c
+++ b/drivers/crypto/atmel-aes.c
@@ -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 */