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-rw-r--r--drivers/crypto/omap-sham.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c
index 831f9a438b03..a727a6a59653 100644
--- a/drivers/crypto/omap-sham.c
+++ b/drivers/crypto/omap-sham.c
@@ -789,10 +789,13 @@ static int omap_sham_update_cpu(struct omap_sham_dev *dd)
dev_dbg(dd->dev, "cpu: bufcnt: %u, digcnt: %d, final: %d\n",
ctx->bufcnt, ctx->digcnt, final);
- bufcnt = ctx->bufcnt;
- ctx->bufcnt = 0;
+ if (final || (ctx->bufcnt == ctx->buflen && ctx->total)) {
+ bufcnt = ctx->bufcnt;
+ ctx->bufcnt = 0;
+ return omap_sham_xmit_cpu(dd, ctx->buffer, bufcnt, final);
+ }
- return omap_sham_xmit_cpu(dd, ctx->buffer, bufcnt, final);
+ return 0;
}
static int omap_sham_update_dma_stop(struct omap_sham_dev *dd)
@@ -1103,6 +1106,9 @@ static int omap_sham_update(struct ahash_request *req)
return 0;
}
+ if (dd->polling_mode)
+ ctx->flags |= BIT(FLAGS_CPU);
+
return omap_sham_enqueue(req, OP_UPDATE);
}