[PATCH] mmc: renesas_sdhi: add checks for pinctrl_lookup_state

[Chuhong Yuan]

renesas_sdhi_probe misses checks for pinctrl_lookup_state and may miss
failures.
Add checks for them to fix the problem.

Signed-off-by: Chuhong Yuan <hslester96@xxxxxxxxx>
---
 drivers/mmc/host/renesas_sdhi_core.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c
index d4ada5cca2d1..dc5ad6632df3 100644
--- a/drivers/mmc/host/renesas_sdhi_core.c
+++ b/drivers/mmc/host/renesas_sdhi_core.c
@@ -694,8 +694,13 @@ int renesas_sdhi_probe(struct platform_device *pdev,
 	if (!IS_ERR(priv->pinctrl)) {
 		priv->pins_default = pinctrl_lookup_state(priv->pinctrl,
 						PINCTRL_STATE_DEFAULT);
+		if (IS_ERR(priv->pins_default))
+			return PTR_ERR(priv->pins_default);
+
 		priv->pins_uhs = pinctrl_lookup_state(priv->pinctrl,
 						"state_uhs");
+		if (IS_ERR(priv->pins_uhs))
+			return PTR_ERR(priv->pins_uhs);
 	}
 
 	host = tmio_mmc_host_alloc(pdev, mmc_data);
-- 
2.20.1