From fdda7901cc77b5bc525263c385cc19f151b6612b Mon Sep 17 00:00:00 2001
From: Haolin Li <li.haolin@qq.com>
Date: Tue, 22 Mar 2022 05:58:02 -0700
Subject: [PATCH] mmc: rockchip_sdhci: Correct error checking

A pointer can not be negative. Use macro IS_ERR_OR_NULL() for checking.

Signed-off-by: Haolin Li <li.haolin@qq.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
---
 drivers/mmc/rockchip_sdhci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/rockchip_sdhci.c b/drivers/mmc/rockchip_sdhci.c
index 1fdc841517..9608770d4e 100644
--- a/drivers/mmc/rockchip_sdhci.c
+++ b/drivers/mmc/rockchip_sdhci.c
@@ -227,7 +227,7 @@ static int rk3399_emmc_get_phy(struct udevice *dev)
 	}
 
 	grf_base = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
-	if (grf_base < 0) {
+	if (IS_ERR_OR_NULL(grf_base)) {
 		printf("%s Get syscon grf failed", __func__);
 		return -ENODEV;
 	}