diff --git a/drivers/nvmem/sunplus-ocotp.c b/drivers/nvmem/sunplus-ocotp.c
index 52b928a7a6d5..f85350b17d67 100644
--- a/drivers/nvmem/sunplus-ocotp.c
+++ b/drivers/nvmem/sunplus-ocotp.c
@@ -192,9 +192,11 @@ static int sp_ocotp_probe(struct platform_device *pdev)
 	sp_ocotp_nvmem_config.dev = dev;
 
 	nvmem = devm_nvmem_register(dev, &sp_ocotp_nvmem_config);
-	if (IS_ERR(nvmem))
-		return dev_err_probe(&pdev->dev, PTR_ERR(nvmem),
+	if (IS_ERR(nvmem)) {
+		ret = dev_err_probe(&pdev->dev, PTR_ERR(nvmem),
 						"register nvmem device fail\n");
+		goto err;
+	}
 
 	platform_set_drvdata(pdev, nvmem);
 
@@ -203,6 +205,9 @@ static int sp_ocotp_probe(struct platform_device *pdev)
 		(int)OTP_WORD_SIZE, (int)QAC628_OTP_SIZE);
 
 	return 0;
+err:
+	clk_unprepare(otp->clk);
+	return ret;
 }
 
 static const struct of_device_id sp_ocotp_dt_ids[] = {