From 62a9d9fc7a210005cdbbf186d6e655228497dfac Mon Sep 17 00:00:00 2001 From: Yunfeng Ye Date: Mon, 16 Sep 2019 14:38:25 +0800 Subject: [PATCH] crypto: hisilicon - Fix return value check in hisi_zip_acompress() The return valude of add_comp_head() is int, but @head_size is size_t, which is a unsigned type. size_t head_size; ... if (head_size < 0) // it will never work return -ENOMEM Modify the type of @head_size to int, then change the type to size_t when invoke hisi_zip_create_req() as a parameter. Fixes: 62c455ca853e ("crypto: hisilicon - add HiSilicon ZIP accelerator support") Signed-off-by: Yunfeng Ye Acked-by: Zhou Wang Signed-off-by: Herbert Xu --- drivers/crypto/hisilicon/zip/zip_crypto.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/crypto/hisilicon/zip/zip_crypto.c b/drivers/crypto/hisilicon/zip/zip_crypto.c index 5a3f84d..5902354 100644 --- a/drivers/crypto/hisilicon/zip/zip_crypto.c +++ b/drivers/crypto/hisilicon/zip/zip_crypto.c @@ -559,7 +559,7 @@ static int hisi_zip_acompress(struct acomp_req *acomp_req) struct hisi_zip_ctx *ctx = crypto_tfm_ctx(acomp_req->base.tfm); struct hisi_zip_qp_ctx *qp_ctx = &ctx->qp_ctx[QPC_COMP]; struct hisi_zip_req *req; - size_t head_size; + int head_size; int ret; /* let's output compression head now */ @@ -567,7 +567,7 @@ static int hisi_zip_acompress(struct acomp_req *acomp_req) if (head_size < 0) return -ENOMEM; - req = hisi_zip_create_req(acomp_req, qp_ctx, head_size, true); + req = hisi_zip_create_req(acomp_req, qp_ctx, (size_t)head_size, true); if (IS_ERR(req)) return PTR_ERR(req); -- 2.7.4