linux-kernel - [PATCH 1/2] pinctrl: Fix return value about devm_platform_ioremap

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Date:   Sat, 23 May 2020 19:45:25 +0800
From:   Tiezhu Yang <yangtiezhu@...ngson.cn>
To:     Linus Walleij <linus.walleij@...aro.org>
Cc:     linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
        Xuefeng Li <lixuefeng@...ngson.cn>,
        Tiezhu Yang <yangtiezhu@...ngson.cn>
Subject: [PATCH 1/2] pinctrl: Fix return value about devm_platform_ioremap_resource()

When call function devm_platform_ioremap_resource(), we should use IS_ERR()
to check the return value and return PTR_ERR() if failed.

Fixes: 4b024225c4a8 ("pinctrl: use devm_platform_ioremap_resource() to simplify code")
Signed-off-by: Tiezhu Yang <yangtiezhu@...ngson.cn>
---
 drivers/pinctrl/bcm/pinctrl-bcm281xx.c | 2 +-
 drivers/pinctrl/pinctrl-at91-pio4.c    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/bcm/pinctrl-bcm281xx.c b/drivers/pinctrl/bcm/pinctrl-bcm281xx.c
index f690fc5..71e6661 100644
--- a/drivers/pinctrl/bcm/pinctrl-bcm281xx.c
+++ b/drivers/pinctrl/bcm/pinctrl-bcm281xx.c
@@ -1406,7 +1406,7 @@ static int __init bcm281xx_pinctrl_probe(struct platform_device *pdev)
 	pdata->reg_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(pdata->reg_base)) {
 		dev_err(&pdev->dev, "Failed to ioremap MEM resource\n");
-		return -ENODEV;
+		return PTR_ERR(pdata->reg_base);
 	}
 
 	/* Initialize the dynamic part of pinctrl_desc */
diff --git a/drivers/pinctrl/pinctrl-at91-pio4.c b/drivers/pinctrl/pinctrl-at91-pio4.c
index 6949124..54222ccd 100644
--- a/drivers/pinctrl/pinctrl-at91-pio4.c
+++ b/drivers/pinctrl/pinctrl-at91-pio4.c
@@ -1019,7 +1019,7 @@ static int atmel_pinctrl_probe(struct platform_device *pdev)
 
 	atmel_pioctrl->reg_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(atmel_pioctrl->reg_base))
-		return -EINVAL;
+		return PTR_ERR(atmel_pioctrl->reg_base);
 
 	atmel_pioctrl->clk = devm_clk_get(dev, NULL);
 	if (IS_ERR(atmel_pioctrl->clk)) {
-- 
2.1.0