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authorJack Wang <jinpu.wang@ionos.com>2022-08-19 08:07:52 +0200
committerHerbert Xu <herbert@gondor.apana.org.au>2022-08-26 12:50:40 +0200
commit45fa321e7de604146603e24ee5bf3c0b766efe46 (patch)
treee41bb724fc17190c81971daaba478ba4ad9e3647 /drivers/crypto/amlogic/amlogic-gxl-cipher.c
parentcrypto: qce - Fix dma_map_sg error check (diff)
downloadlinux-45fa321e7de604146603e24ee5bf3c0b766efe46.tar.xz
linux-45fa321e7de604146603e24ee5bf3c0b766efe46.zip
crypto: amlogic - Fix dma_map_sg error check
dma_map_sg return 0 on error. Cc: Corentin Labbe <clabbe@baylibre.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: "David S. Miller" <davem@davemloft.net> Cc: linux-crypto@vger.kernel.org Cc: linux-amlogic@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/amlogic/amlogic-gxl-cipher.c')
-rw-r--r--drivers/crypto/amlogic/amlogic-gxl-cipher.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/crypto/amlogic/amlogic-gxl-cipher.c b/drivers/crypto/amlogic/amlogic-gxl-cipher.c
index e79514fce731..af017a087ebf 100644
--- a/drivers/crypto/amlogic/amlogic-gxl-cipher.c
+++ b/drivers/crypto/amlogic/amlogic-gxl-cipher.c
@@ -177,7 +177,7 @@ static int meson_cipher(struct skcipher_request *areq)
if (areq->src == areq->dst) {
nr_sgs = dma_map_sg(mc->dev, areq->src, sg_nents(areq->src),
DMA_BIDIRECTIONAL);
- if (nr_sgs < 0) {
+ if (!nr_sgs) {
dev_err(mc->dev, "Invalid SG count %d\n", nr_sgs);
err = -EINVAL;
goto theend;
@@ -186,14 +186,14 @@ static int meson_cipher(struct skcipher_request *areq)
} else {
nr_sgs = dma_map_sg(mc->dev, areq->src, sg_nents(areq->src),
DMA_TO_DEVICE);
- if (nr_sgs < 0 || nr_sgs > MAXDESC - 3) {
+ if (!nr_sgs || nr_sgs > MAXDESC - 3) {
dev_err(mc->dev, "Invalid SG count %d\n", nr_sgs);
err = -EINVAL;
goto theend;
}
nr_sgd = dma_map_sg(mc->dev, areq->dst, sg_nents(areq->dst),
DMA_FROM_DEVICE);
- if (nr_sgd < 0 || nr_sgd > MAXDESC - 3) {
+ if (!nr_sgd || nr_sgd > MAXDESC - 3) {
dev_err(mc->dev, "Invalid SG count %d\n", nr_sgd);
err = -EINVAL;
goto theend;