With very small data sizes, the whole data can end up in the xmit
buffer. This code path does not set the sg_len properly which causes the
core dma framework to crash. Fix by adding the proper size in place.
Also, the data length must be a multiple of block-size, so extend the
DMA data size while here.
Signed-off-by: Tero Kristo <t-kristo@xxxxxx>
---
drivers/crypto/omap-sham.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c
index 9823d7dfca9c..86949f1ac6a7 100644
--- a/drivers/crypto/omap-sham.c
+++ b/drivers/crypto/omap-sham.c
@@ -753,9 +753,11 @@ static int omap_sham_align_sgs(struct scatterlist *sg,
if (!sg || !sg->length || !nbytes) {
if (bufcnt) {
+ bufcnt = DIV_ROUND_UP(bufcnt, bs) * bs;
sg_init_table(rctx->sgl, 1);
sg_set_buf(rctx->sgl, rctx->dd->xmit_buf, bufcnt);
rctx->sg = rctx->sgl;
+ rctx->sg_len = 1;
}
return 0;
--
2.17.1
--
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