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authorMarek Szyprowski <m.szyprowski@samsung.com>2016-04-26 10:29:26 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2016-04-28 04:15:50 +0300
commitd1497977fecb9acce05988d6322ad415ef93bb39 (patch)
tree85d7f633720aa26082a351e3472e2a664e040113 /drivers/crypto
parent6f6438975d6a1afb0f0ac18176ede4e667020db0 (diff)
downloadlinux-d1497977fecb9acce05988d6322ad415ef93bb39.tar.xz
crypto: s5p-sss - fix incorrect usage of scatterlists api
sg_dma_len() macro can be used only on scattelists which are mapped, so all calls to it before dma_map_sg() are invalid. Replace them by proper check for direct sg segment length read. Fixes: a49e490c7a8a ("crypto: s5p-sss - add S5PV210 advanced crypto engine support") Fixes: 9e4a1100a445 ("crypto: s5p-sss - Handle unaligned buffers") Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
-rw-r--r--drivers/crypto/s5p-sss.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/crypto/s5p-sss.c b/drivers/crypto/s5p-sss.c
index ac6d62b3be07..2b3a0cfe3331 100644
--- a/drivers/crypto/s5p-sss.c
+++ b/drivers/crypto/s5p-sss.c
@@ -327,7 +327,7 @@ static int s5p_set_outdata(struct s5p_aes_dev *dev, struct scatterlist *sg)
{
int err;
- if (!sg_dma_len(sg)) {
+ if (!sg->length) {
err = -EINVAL;
goto exit;
}
@@ -349,7 +349,7 @@ static int s5p_set_indata(struct s5p_aes_dev *dev, struct scatterlist *sg)
{
int err;
- if (!sg_dma_len(sg)) {
+ if (!sg->length) {
err = -EINVAL;
goto exit;
}
@@ -474,7 +474,7 @@ static void s5p_set_aes(struct s5p_aes_dev *dev,
static bool s5p_is_sg_aligned(struct scatterlist *sg)
{
while (sg) {
- if (!IS_ALIGNED(sg_dma_len(sg), AES_BLOCK_SIZE))
+ if (!IS_ALIGNED(sg->length, AES_BLOCK_SIZE))
return false;
sg = sg_next(sg);
}