diff options
| -rw-r--r-- | drivers/crypto/mxs-dcp.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/crypto/mxs-dcp.c b/drivers/crypto/mxs-dcp.c index 08761d61d4f5..c7400fe9522c 100644 --- a/drivers/crypto/mxs-dcp.c +++ b/drivers/crypto/mxs-dcp.c @@ -29,6 +29,8 @@ #define DCP_MAX_CHANS 4 #define DCP_BUF_SZ PAGE_SIZE +#define DCP_ALIGNMENT 64 + /* DCP DMA descriptor. */ struct dcp_dma_desc { uint32_t next_cmd_addr; @@ -947,12 +949,16 @@ static int mxs_dcp_probe(struct platform_device *pdev) } /* Allocate coherent helper block. */ - sdcp->coh = devm_kzalloc(dev, sizeof(*sdcp->coh), GFP_KERNEL); + sdcp->coh = devm_kzalloc(dev, sizeof(*sdcp->coh) + DCP_ALIGNMENT, + GFP_KERNEL); if (!sdcp->coh) { ret = -ENOMEM; goto err_mutex; } + /* Re-align the structure so it fits the DCP constraints. */ + sdcp->coh = PTR_ALIGN(sdcp->coh, DCP_ALIGNMENT); + /* Restart the DCP block. */ ret = stmp_reset_block(sdcp->base); if (ret) |
