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-rw-r--r--drivers/crypto/caam/caampkc.c4
1 files changed, 3 insertions, 1 deletions
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;