On Tue, Sep 09, 2025 at 08:03:56PM +0100, Colin Ian King wrote:
> Currently the error check from the call to platform_get_irq is always
> false because an unsigned int chip->irq.parents[i] is being used to
> to perform the less than zero error check. Fix this by using the int
> variable ret to perform the check.
>
> Fixes: 03c146cb6cd1 ("gpio: loongson-64bit: Add support for Loongson-2K0300 SoC")
> Signed-off-by: Colin Ian King <colin.i.king@xxxxxxxxx>
> ---
> drivers/gpio/gpio-loongson-64bit.c | 9 ++++++---
> 1 file changed, 6 insertions(+), 3 deletions(-)
Thanks for catching this,
Reviewed-by: Yao Zi <ziyao@xxxxxxxxxxx>
> diff --git a/drivers/gpio/gpio-loongson-64bit.c b/drivers/gpio/gpio-loongson-64bit.c
> index f84f8c537249..24b7219db34a 100644
> --- a/drivers/gpio/gpio-loongson-64bit.c
> +++ b/drivers/gpio/gpio-loongson-64bit.c
> @@ -267,10 +267,13 @@ static int loongson_gpio_init_irqchip(struct platform_device *pdev,
> return -ENOMEM;
>
> for (i = 0; i < data->intr_num; i++) {
> - chip->irq.parents[i] = platform_get_irq(pdev, i);
> - if (chip->irq.parents[i] < 0)
> - return dev_err_probe(&pdev->dev, chip->irq.parents[i],
> + int ret;
> +
> + ret = platform_get_irq(pdev, i);
> + if (ret < 0)
> + return dev_err_probe(&pdev->dev, ret,
> "failed to get IRQ %d\n", i);
> + chip->irq.parents[i] = ret;
> }
>
> for (i = 0; i < data->intr_num; i++) {
> --
> 2.51.0
>
