diff mbox

[1/2] crypto: sahara: set nb_[in|out]_sg as signed int

Message ID 1447936699-26854-1-git-send-email-clabbe.montjoie@gmail.com (mailing list archive)
State Accepted
Delegated to: Herbert Xu
Headers show

Commit Message

Corentin Labbe Nov. 19, 2015, 12:38 p.m. UTC
The two unsigned int variables nb_in_sg and nb_out_sg can be assigned
signed value (-EINVAL) from sg_nents_for_len().
Furthermore they are used only by dma_map_sg and dma_unmap_sg which wait
for an signed int, so they must be set as int.

Fixes: 6c2b74d4774f ("crypto: sahara - check return value of sg_nents_for_len")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
---
 drivers/crypto/sahara.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Herbert Xu Nov. 23, 2015, 1:05 p.m. UTC | #1
On Thu, Nov 19, 2015 at 01:38:17PM +0100, LABBE Corentin wrote:
> The two unsigned int variables nb_in_sg and nb_out_sg can be assigned
> signed value (-EINVAL) from sg_nents_for_len().
> Furthermore they are used only by dma_map_sg and dma_unmap_sg which wait
> for an signed int, so they must be set as int.
> 
> Fixes: 6c2b74d4774f ("crypto: sahara - check return value of sg_nents_for_len")
> Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
> Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>

Both patches applied.  Thanks.
diff mbox

Patch

diff --git a/drivers/crypto/sahara.c b/drivers/crypto/sahara.c
index ea9f56a..cc738f3 100644
--- a/drivers/crypto/sahara.c
+++ b/drivers/crypto/sahara.c
@@ -228,9 +228,9 @@  struct sahara_dev {
 
 	size_t			total;
 	struct scatterlist	*in_sg;
-	unsigned int		nb_in_sg;
+	int		nb_in_sg;
 	struct scatterlist	*out_sg;
-	unsigned int		nb_out_sg;
+	int		nb_out_sg;
 
 	u32			error;
 };