diff options
| author | Miaoqian Lin <linmq006@gmail.com> | 2022-01-14 09:51:24 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-27 13:05:31 +0300 |
| commit | 405d639ac41103e5637c3de129195fb10562639a (patch) | |
| tree | c52d6f549aeb0b4b056b6973aeeba34507905983 /drivers/gpio | |
| parent | 4928241698e168794448e49c5d114f1534c46d39 (diff) | |
| download | linux-405d639ac41103e5637c3de129195fb10562639a.tar.xz | |
gpio: idt3243x: Fix IRQ check in idt_gpio_probe
commit 30fee1d7462a446ade399c0819717a830cbdca69 upstream.
platform_get_irq() returns negative error number instead 0 on failure.
And the doc of platform_get_irq() provides a usage example:
int irq = platform_get_irq(pdev, 0);
if (irq < 0)
return irq;
Fix the check of return value to catch errors correctly.
Fixes: 4195926aedca ("gpio: Add support for IDT 79RC3243x GPIO controller")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-idt3243x.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpio/gpio-idt3243x.c b/drivers/gpio/gpio-idt3243x.c index 50003ad2e589..08493b05be2d 100644 --- a/drivers/gpio/gpio-idt3243x.c +++ b/drivers/gpio/gpio-idt3243x.c @@ -164,8 +164,8 @@ static int idt_gpio_probe(struct platform_device *pdev) return PTR_ERR(ctrl->pic); parent_irq = platform_get_irq(pdev, 0); - if (!parent_irq) - return -EINVAL; + if (parent_irq < 0) + return parent_irq; girq = &ctrl->gc.irq; girq->chip = &idt_gpio_irqchip; |