From 03dd4cb26d967f9588437b0fc9cc0e8353322bb7 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Fri, 25 Mar 2016 03:53:42 -0300 Subject: Linux-libre 4.5-gnu --- drivers/crypto/qce/sha.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers/crypto/qce/sha.c') diff --git a/drivers/crypto/qce/sha.c b/drivers/crypto/qce/sha.c index 0c9973ec8..47e114ac0 100644 --- a/drivers/crypto/qce/sha.c +++ b/drivers/crypto/qce/sha.c @@ -92,6 +92,11 @@ static int qce_ahash_async_req_handle(struct crypto_async_request *async_req) } rctx->src_nents = sg_nents_for_len(req->src, req->nbytes); + if (rctx->src_nents < 0) { + dev_err(qce->dev, "Invalid numbers of src SG.\n"); + return rctx->src_nents; + } + ret = dma_map_sg(qce->dev, req->src, rctx->src_nents, DMA_TO_DEVICE); if (ret < 0) return ret; -- cgit v1.2.3-54-g00ecf