diff options
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/omap-sham.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c index 34ecace14360..5efc66ccef46 100644 --- a/drivers/crypto/omap-sham.c +++ b/drivers/crypto/omap-sham.c @@ -750,8 +750,15 @@ static int omap_sham_align_sgs(struct scatterlist *sg, int offset = rctx->offset; int bufcnt = rctx->bufcnt; - if (!sg || !sg->length || !nbytes) + if (!sg || !sg->length || !nbytes) { + if (bufcnt) { + sg_init_table(rctx->sgl, 1); + sg_set_buf(rctx->sgl, rctx->dd->xmit_buf, bufcnt); + rctx->sg = rctx->sgl; + } + return 0; + } new_len = nbytes; @@ -895,7 +902,7 @@ static int omap_sham_prepare_request(struct ahash_request *req, bool update) if (hash_later < 0) hash_later = 0; - if (hash_later) { + if (hash_later && hash_later <= rctx->buflen) { scatterwalk_map_and_copy(rctx->buffer, req->src, req->nbytes - hash_later, |