linux-kernel - [PATCH] pinctrl: ti: fix error return code of ti_iodelay

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Message-Id: <20210306125122.15043-1-baijiaju1990@gmail.com>
Date:   Sat,  6 Mar 2021 04:51:22 -0800
From:   Jia-Ju Bai <baijiaju1990@...il.com>
To:     linus.walleij@...aro.org, jrdr.linux@...il.com,
        zhengyongjun3@...wei.com, grandmaster@...klimov.de
Cc:     linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jia-Ju Bai <baijiaju1990@...il.com>
Subject: [PATCH] pinctrl: ti: fix error return code of ti_iodelay_probe()

When ti_iodelay_pinconf_init_dev() fails, no error return code of
ti_iodelay_probe() is assigned.
To fix this bug, ret is assigned with the return value of
ti_iodelay_pinconf_init_dev(), and then ret is checked.

Reported-by: TOTE Robot <oslab@...nghua.edu.cn>
Signed-off-by: Jia-Ju Bai <baijiaju1990@...il.com>
---
 drivers/pinctrl/ti/pinctrl-ti-iodelay.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/ti/pinctrl-ti-iodelay.c b/drivers/pinctrl/ti/pinctrl-ti-iodelay.c
index 60a67139ff0a..e5848269175a 100644
--- a/drivers/pinctrl/ti/pinctrl-ti-iodelay.c
+++ b/drivers/pinctrl/ti/pinctrl-ti-iodelay.c
@@ -867,7 +867,8 @@ static int ti_iodelay_probe(struct platform_device *pdev)
 		goto exit_out;
 	}
 
-	if (ti_iodelay_pinconf_init_dev(iod))
+	ret = ti_iodelay_pinconf_init_dev(iod);
+	if (ret)
 		goto exit_out;
 
 	ret = ti_iodelay_alloc_pins(dev, iod, res->start);
-- 
2.17.1