From: Gaurav Jain <gaurav.jain@xxxxxxx> 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> --- 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 72afc249d42f..7e08af751e4e 100644 --- a/drivers/crypto/caam/caampkc.c +++ b/drivers/crypto/caam/caampkc.c @@ -225,7 +225,9 @@ 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; -- 2.25.1