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path: root/drivers/crypto/ccp/ccp-ops.c
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Diffstat (limited to 'drivers/crypto/ccp/ccp-ops.c')
-rw-r--r--drivers/crypto/ccp/ccp-ops.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/crypto/ccp/ccp-ops.c b/drivers/crypto/ccp/ccp-ops.c
index 71f2e3c89..d09c6c4af 100644
--- a/drivers/crypto/ccp/ccp-ops.c
+++ b/drivers/crypto/ccp/ccp-ops.c
@@ -52,8 +52,7 @@ struct ccp_dm_workarea {
struct ccp_sg_workarea {
struct scatterlist *sg;
- unsigned int nents;
- unsigned int length;
+ int nents;
struct scatterlist *dma_sg;
struct device *dma_dev;
@@ -496,8 +495,10 @@ static int ccp_init_sg_workarea(struct ccp_sg_workarea *wa, struct device *dev,
if (!sg)
return 0;
- wa->nents = sg_nents(sg);
- wa->length = sg->length;
+ wa->nents = sg_nents_for_len(sg, len);
+ if (wa->nents < 0)
+ return wa->nents;
+
wa->bytes_left = len;
wa->sg_used = 0;