diff options
Diffstat (limited to 'drivers/crypto/intel/keembay')
| -rw-r--r-- | drivers/crypto/intel/keembay/keembay-ocs-hcu-core.c | 5 | ||||
| -rw-r--r-- | drivers/crypto/intel/keembay/ocs-aes.c | 4 |
2 files changed, 6 insertions, 3 deletions
diff --git a/drivers/crypto/intel/keembay/keembay-ocs-hcu-core.c b/drivers/crypto/intel/keembay/keembay-ocs-hcu-core.c index 8f9e21ced0fe..48281d882260 100644 --- a/drivers/crypto/intel/keembay/keembay-ocs-hcu-core.c +++ b/drivers/crypto/intel/keembay/keembay-ocs-hcu-core.c @@ -232,7 +232,7 @@ static int kmb_ocs_dma_prepare(struct ahash_request *req) struct device *dev = rctx->hcu_dev->dev; unsigned int remainder = 0; unsigned int total; - size_t nents; + int nents; size_t count; int rc; int i; @@ -253,6 +253,9 @@ static int kmb_ocs_dma_prepare(struct ahash_request *req) /* Determine the number of scatter gather list entries to process. */ nents = sg_nents_for_len(req->src, rctx->sg_data_total - remainder); + if (nents < 0) + return nents; + /* If there are entries to process, map them. */ if (nents) { rctx->sg_dma_nents = dma_map_sg(dev, req->src, nents, diff --git a/drivers/crypto/intel/keembay/ocs-aes.c b/drivers/crypto/intel/keembay/ocs-aes.c index be9f32fc8f42..bb6f33f6b4d3 100644 --- a/drivers/crypto/intel/keembay/ocs-aes.c +++ b/drivers/crypto/intel/keembay/ocs-aes.c @@ -7,6 +7,7 @@ #include <linux/dma-mapping.h> #include <linux/interrupt.h> +#include <linux/kernel.h> #include <linux/platform_device.h> #include <linux/slab.h> #include <linux/swab.h> @@ -1473,8 +1474,7 @@ int ocs_create_linked_list_from_sg(const struct ocs_aes_dev *aes_dev, ll = dll_desc->vaddr; for (i = 0; i < dma_nents; i++, sg = sg_next(sg)) { ll[i].src_addr = sg_dma_address(sg) + data_offset; - ll[i].src_len = (sg_dma_len(sg) - data_offset) < data_size ? - (sg_dma_len(sg) - data_offset) : data_size; + ll[i].src_len = min(sg_dma_len(sg) - data_offset, data_size); data_offset = 0; data_size -= ll[i].src_len; /* Current element points to the DMA address of the next one. */ |