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crypto: marvell - check return value of sg_nents_for_len
The sg_nents_for_len() function could fail, this patch add a check for its return value. Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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2 changed files with 12 additions and 0 deletions
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@ -401,7 +401,15 @@ static int mv_cesa_ablkcipher_req_init(struct ablkcipher_request *req,
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return -EINVAL;
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creq->src_nents = sg_nents_for_len(req->src, req->nbytes);
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if (creq->src_nents < 0) {
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dev_err(cesa_dev->dev, "Invalid number of src SG");
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return creq->src_nents;
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}
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creq->dst_nents = sg_nents_for_len(req->dst, req->nbytes);
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if (creq->dst_nents < 0) {
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dev_err(cesa_dev->dev, "Invalid number of dst SG");
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return creq->dst_nents;
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}
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mv_cesa_update_op_cfg(tmpl, CESA_SA_DESC_CFG_OP_CRYPT_ONLY,
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CESA_SA_DESC_CFG_OP_MSK);
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@ -712,6 +712,10 @@ static int mv_cesa_ahash_req_init(struct ahash_request *req, bool *cached)
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creq->req.base.type = CESA_STD_REQ;
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creq->src_nents = sg_nents_for_len(req->src, req->nbytes);
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if (creq->src_nents < 0) {
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dev_err(cesa_dev->dev, "Invalid number of src SG");
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return creq->src_nents;
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}
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ret = mv_cesa_ahash_cache_req(req, cached);
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if (ret)
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