4.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Gaurav Jain <gaurav.jain@xxxxxxx>
[ Upstream commit e30685204711a6be40dec2622606950ccd37dafe ]
error:
Unchecked return value (CHECKED_RETURN)
check_return: Calling sg_miter_next without checking return value
fix:
added check if(!sg_miter_next)
Fixes: 8a2a0dd35f2e ("crypto: caam - strip input zeros from RSA input buffer")
Signed-off-by: Gaurav Jain <gaurav.jain@xxxxxxx>
Signed-off-by: Meenakshi Aggarwal <meenakshi.aggarwal@xxxxxxx>
Reviewed-by: Gaurav Jain <gaurav.jain@xxxxxxx>
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/crypto/caam/caampkc.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/crypto/caam/caampkc.c b/drivers/crypto/caam/caampkc.c
index f26d62e5533a7..701e4ad8077b4 100644
--- a/drivers/crypto/caam/caampkc.c
+++ b/drivers/crypto/caam/caampkc.c
@@ -194,7 +194,9 @@ static int caam_rsa_count_leading_zeros(struct scatterlist *sgl,
if (len && *buff)
break;
- sg_miter_next(&miter);
+ if (!sg_miter_next(&miter))
+ break;
+
buff = miter.addr;
len = miter.length;
--
2.40.1
