lkml.org 
[lkml]   [2022]   [Aug]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v1 11/19] crypto: allwinner: Fix dma_map_sg error check
Date
dma_map_sg return 0 on error.

Cc: Corentin Labbe <clabbe.montjoie@gmail.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Jernej Skrabec <jernej.skrabec@gmail.com>
Cc: Samuel Holland <samuel@sholland.org>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Minghao Chi <chi.minghao@zte.com.cn>
Cc: Peng Wu <wupeng58@huawei.com>
Cc: Alexey Khoroshilov <khoroshilov@ispras.ru>
Cc: linux-crypto@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-sunxi@lists.linux.dev
Cc: linux-kernel@vger.kernel.org

Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
---
drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c | 6 +++---
drivers/crypto/allwinner/sun8i-ce/sun8i-ce-hash.c | 2 +-
drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c | 4 ++--
drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c | 2 +-
4 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c
index 74b4e910a38d..be7f46faef7e 100644
--- a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c
+++ b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c
@@ -208,7 +208,7 @@ static int sun8i_ce_cipher_prepare(struct crypto_engine *engine, void *async_req

if (areq->src == areq->dst) {
nr_sgs = dma_map_sg(ce->dev, areq->src, ns, DMA_BIDIRECTIONAL);
- if (nr_sgs <= 0 || nr_sgs > MAX_SG) {
+ if (!nr_sgs || nr_sgs > MAX_SG) {
dev_err(ce->dev, "Invalid sg number %d\n", nr_sgs);
err = -EINVAL;
goto theend_iv;
@@ -216,13 +216,13 @@ static int sun8i_ce_cipher_prepare(struct crypto_engine *engine, void *async_req
nr_sgd = nr_sgs;
} else {
nr_sgs = dma_map_sg(ce->dev, areq->src, ns, DMA_TO_DEVICE);
- if (nr_sgs <= 0 || nr_sgs > MAX_SG) {
+ if (!nr_sgs || nr_sgs > MAX_SG) {
dev_err(ce->dev, "Invalid sg number %d\n", nr_sgs);
err = -EINVAL;
goto theend_iv;
}
nr_sgd = dma_map_sg(ce->dev, areq->dst, nd, DMA_FROM_DEVICE);
- if (nr_sgd <= 0 || nr_sgd > MAX_SG) {
+ if (!nr_sgd || nr_sgd > MAX_SG) {
dev_err(ce->dev, "Invalid sg number %d\n", nr_sgd);
err = -EINVAL;
goto theend_sgs;
diff --git a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-hash.c b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-hash.c
index 8b5b9b9d04c3..0e6843ec197f 100644
--- a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-hash.c
+++ b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-hash.c
@@ -389,7 +389,7 @@ int sun8i_ce_hash_run(struct crypto_engine *engine, void *breq)
cet->t_asym_ctl = 0;

nr_sgs = dma_map_sg(ce->dev, areq->src, ns, DMA_TO_DEVICE);
- if (nr_sgs <= 0 || nr_sgs > MAX_SG) {
+ if (!nr_sgs || nr_sgs > MAX_SG) {
dev_err(ce->dev, "Invalid sg number %d\n", nr_sgs);
err = -EINVAL;
goto theend;
diff --git a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c
index 910d6751644c..fdcc98cdecaa 100644
--- a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c
+++ b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c
@@ -232,13 +232,13 @@ static int sun8i_ss_cipher(struct skcipher_request *areq)
nr_sgd = nr_sgs;
} else {
nr_sgs = dma_map_sg(ss->dev, areq->src, nsgs, DMA_TO_DEVICE);
- if (nr_sgs <= 0 || nr_sgs > 8) {
+ if (!nr_sgs || nr_sgs > 8) {
dev_err(ss->dev, "Invalid sg number %d\n", nr_sgs);
err = -EINVAL;
goto theend_iv;
}
nr_sgd = dma_map_sg(ss->dev, areq->dst, nsgd, DMA_FROM_DEVICE);
- if (nr_sgd <= 0 || nr_sgd > 8) {
+ if (!nr_sgd || nr_sgd > 8) {
dev_err(ss->dev, "Invalid sg number %d\n", nr_sgd);
err = -EINVAL;
goto theend_sgs;
diff --git a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c
index 36a82b22953c..fcb8c41cc957 100644
--- a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c
+++ b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c
@@ -527,7 +527,7 @@ int sun8i_ss_hash_run(struct crypto_engine *engine, void *breq)
rctx->method = ss->variant->alg_hash[algt->ss_algo_id];

nr_sgs = dma_map_sg(ss->dev, areq->src, sg_nents(areq->src), DMA_TO_DEVICE);
- if (nr_sgs <= 0 || nr_sgs > MAX_SG) {
+ if (!nr_sgs || nr_sgs > MAX_SG) {
dev_err(ss->dev, "Invalid sg number %d\n", nr_sgs);
err = -EINVAL;
goto theend;
--
2.34.1
\
 
 \ /
  Last update: 2022-08-19 08:10    [W:0.541 / U:0.048 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site