diff --git a/drivers/mmc/rockchip_sdhci.c b/drivers/mmc/rockchip_sdhci.c
index 1fdc841..9608770 100644
--- a/drivers/mmc/rockchip_sdhci.c
+++ b/drivers/mmc/rockchip_sdhci.c
@@ -227,7 +227,7 @@
 	}
 
 	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;
 	}