diff options
| author | Leilei Zhao | 2015-04-07 11:45:11 +0200 |
|---|---|---|
| committer | Herbert Xu | 2015-04-08 16:20:05 +0200 |
| commit | 9cd223239a79df3cc758ecabb8473ca91599021b (patch) | |
| tree | c235d3ef0573aaa853b27d7b721e6ca9da410441 /drivers/crypto/atmel-aes.c | |
| parent | crypto: atmel-aes - sync the buf used in DMA or CPU (diff) | |
| download | kernel-qcow2-linux-9cd223239a79df3cc758ecabb8473ca91599021b.tar.gz kernel-qcow2-linux-9cd223239a79df3cc758ecabb8473ca91599021b.tar.xz kernel-qcow2-linux-9cd223239a79df3cc758ecabb8473ca91599021b.zip | |
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.c | 2 |
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 */ |