diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c
index 69528da0c0d7fa8dc23ffae187e204ee81ce2aba..a82960fae6eb05fdc416fde6f85511c97df174d0 100644
--- a/drivers/crypto/hisilicon/qm.c
+++ b/drivers/crypto/hisilicon/qm.c
@@ -4235,7 +4235,7 @@ static ssize_t qm_qos_value_init(const char *buf, unsigned long *val)
 			return -EINVAL;
 	}
 
-	ret = sscanf(buf, "%ld", val);
+	ret = sscanf(buf, "%lu", val);
 	if (ret != QM_QOS_VAL_NUM)
 		return -EINVAL;