UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

crypto: img-hash - use dma_data_direction when calling dma_map_sg 

The fourth argument of dma_map_sg() and dma_unmap_sg() is an item of
dma_data_direction enum. Function img_hash_xmit_dma() wrongly used
DMA_MEM_TO_DEV, which is an item of dma_transfer_direction enum.

Replace DMA_MEM_TO_DEV (which value is 1) with DMA_TO_DEVICE (which
value is fortunately also 1) when calling dma_map_sg() and
dma_unmap_sg().

Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Nicolas Iooss 2017-01-15 13:37:50 +01:00 committed by Herbert Xu
parent 87170961f3
commit 3bfb2e6b32
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/crypto/img-hash.c
View File

@ -226,7 +226,7 @@ static int img_hash_xmit_dma(struct img_hash_dev *hdev, struct scatterlist *sg)
struct dma_async_tx_descriptor *desc;
struct img_hash_request_ctx *ctx = ahash_request_ctx(hdev->req);
ctx->dma_ct = dma_map_sg(hdev->dev, sg, 1, DMA_MEM_TO_DEV);
ctx->dma_ct = dma_map_sg(hdev->dev, sg, 1, DMA_TO_DEVICE);
if (ctx->dma_ct == 0) {
dev_err(hdev->dev, "Invalid DMA sg\n");
hdev->err = -EINVAL;
@ -241,7 +241,7 @@ static int img_hash_xmit_dma(struct img_hash_dev *hdev, struct scatterlist *sg)
if (!desc) {
dev_err(hdev->dev, "Null DMA descriptor\n");
hdev->err = -EINVAL;
dma_unmap_sg(hdev->dev, sg, 1, DMA_MEM_TO_DEV);
dma_unmap_sg(hdev->dev, sg, 1, DMA_TO_DEVICE);
return -EINVAL;
}
desc->callback = img_hash_dma_callback;