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gpio: sifive: add missing check for platform_get_irq

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[ Upstream commit c1bcb976d8feb107ff2c12caaf12ac5e70f44d5f ]

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: f52d6d8b43 ("gpio: sifive: To get gpio irq offset from device tree data")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jiasheng Jiang 2023-06-06 11:11:59 +08:00 • committed by Greg Kroah-Hartman
parent cb1108e174
commit 8592ada80e
1 changed files with 6 additions and 2 deletions
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8
drivers/gpio/gpio-sifive.c
View file

@ -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,