[PATCH v2] gpio: lpc32xx: Handle devm_gpiochip_add_data error codes
From: Jiasheng Jiang <hidden>
Date: 2021-12-03 08:04:45
Also in:
linux-gpio, lkml
Subsystem:
gpio subsystem, the rest · Maintainers:
Linus Walleij, Bartosz Golaszewski, Linus Torvalds
The return value of devm_gpiochip_add_data() is not always 0.
To catch the exception in case of the failure.
Fixes: 69c0a0a52cde ("gpio: lpc32xx: Use devm_gpiochip_add_data() for gpio registration")
Signed-off-by: Jiasheng Jiang <redacted>
---
Changelog
v1 -> v2
* Change 1. Correct mixed declarations and code.
---
drivers/gpio/gpio-lpc32xx.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpio/gpio-lpc32xx.c b/drivers/gpio/gpio-lpc32xx.c
index 4e626c4235c2..e3b734302b76 100644
--- a/drivers/gpio/gpio-lpc32xx.c
+++ b/drivers/gpio/gpio-lpc32xx.c@@ -505,6 +505,7 @@ static int lpc32xx_of_xlate(struct gpio_chip *gc, static int lpc32xx_gpio_probe(struct platform_device *pdev) { int i; + int err; void __iomem *reg_base; reg_base = devm_platform_ioremap_resource(pdev, 0);
@@ -518,8 +519,10 @@ static int lpc32xx_gpio_probe(struct platform_device *pdev) lpc32xx_gpiochip[i].chip.of_node = pdev->dev.of_node; lpc32xx_gpiochip[i].reg_base = reg_base; } - devm_gpiochip_add_data(&pdev->dev, &lpc32xx_gpiochip[i].chip, + err = devm_gpiochip_add_data(&pdev->dev, &lpc32xx_gpiochip[i].chip, &lpc32xx_gpiochip[i]); + if (err) + return err; } return 0;
--
2.25.1
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