diff --git a/drivers/crypto/hisilicon/hpre/hpre_main.c b/drivers/crypto/hisilicon/hpre/hpre_main.c
index a33394d91bbf..8da9d6dc6e87 100644
--- a/drivers/crypto/hisilicon/hpre/hpre_main.c
+++ b/drivers/crypto/hisilicon/hpre/hpre_main.c
@@ -637,7 +637,7 @@ static int hpre_cluster_debugfs_init(struct hisi_qm *qm)
 
 	for (i = 0; i < HPRE_CLUSTERS_NUM; i++) {
 		ret = snprintf(buf, HPRE_DBGFS_VAL_MAX_LEN, "cluster%d", i);
-		if (ret < 0)
+		if (ret >= HPRE_DBGFS_VAL_MAX_LEN)
 			return -EINVAL;
 		tmp_d = debugfs_create_dir(buf, qm->debug.debug_root);