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crypto: gemini - Fix error check for dma_map_sg

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dma_map_sg return 0 on error.

Cc: Corentin Labbe <clabbe@baylibre.com>
Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: linux-crypto@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Jack Wang
2022-08-19 08:07:49 +02:00
committed by Herbert Xu
parent 2885586005
commit 545665ad1e
1 changed files with 3 additions and 3 deletions
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6
drivers/crypto/gemini/sl3516-ce-cipher.c
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@@ -149,7 +149,7 @@ static int sl3516_ce_cipher(struct skcipher_request *areq)
if (areq->src == areq->dst) {
nr_sgs = dma_map_sg(ce->dev, areq->src, sg_nents(areq->src),
DMA_BIDIRECTIONAL);
if (nr_sgs <= 0 || nr_sgs > MAXDESC / 2) {
if (!nr_sgs || nr_sgs > MAXDESC / 2) {
dev_err(ce->dev, "Invalid sg number %d\n", nr_sgs);
err = -EINVAL;
goto theend;
@@ -158,14 +158,14 @@ static int sl3516_ce_cipher(struct skcipher_request *areq)
} else {
nr_sgs = dma_map_sg(ce->dev, areq->src, sg_nents(areq->src),
DMA_TO_DEVICE);
if (nr_sgs <= 0 || nr_sgs > MAXDESC / 2) {
if (!nr_sgs || nr_sgs > MAXDESC / 2) {
dev_err(ce->dev, "Invalid sg number %d\n", nr_sgs);
err = -EINVAL;
goto theend;
}
nr_sgd = dma_map_sg(ce->dev, areq->dst, sg_nents(areq->dst),
DMA_FROM_DEVICE);
if (nr_sgd <= 0 || nr_sgd > MAXDESC) {
if (!nr_sgd || nr_sgd > MAXDESC) {
dev_err(ce->dev, "Invalid sg number %d\n", nr_sgd);
err = -EINVAL;
goto theend_sgs;