Commit c1bcb976 authored by 蒋家盛's avatar 蒋家盛 Committed by Bartosz Golaszewski
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gpio: sifive: add missing check for platform_get_irq 



Add the missing check for platform_get_irq() and return error code
if it fails.

The returned error code will be dealed with in
builtin_platform_driver(sifive_gpio_driver) and the driver will not
be registered.

Fixes: f52d6d8b ("gpio: sifive: To get gpio irq offset from device tree data")
Signed-off-by: default avatarJiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: default avatarBartosz Golaszewski <bartosz.golaszewski@linaro.org>
parent 8c00914e

drivers/gpio/gpio-sifive.c

+6 −2
Original line number Diff line number Diff line
@@ -221,8 +221,12 @@ static int sifive_gpio_probe(struct platform_device *pdev) 
		return -ENODEV;

	}



	for (i = 0; i < ngpio; i++)

		chip->irq_number[i] = platform_get_irq(pdev, i);

	for (i = 0; i < ngpio; i++) {

		ret = platform_get_irq(pdev, i);

		if (ret < 0)

			return ret;

		chip->irq_number[i] = ret;

	}



	ret = bgpio_init(&chip->gc, dev, 4,

			 chip->base + SIFIVE_GPIO_INPUT_VAL,