Re: [PATCH 1/2] EDAC/aspeed: Fix handling of platform_get_irq() error

From: Stefan Schaeckeler
Date: Thu Aug 27 2020 - 19:51:47 EST


> platform_get_irq() returns -ERRNO on error. In such case comparison
> to 0 would pass the check.
>
> Fixes: 9b7e6242ee4e ("EDAC, aspeed: Add an Aspeed AST2500 EDAC driver")
> Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>

Reviewed-by: Stefan Schaeckeler <schaecsn@xxxxxxx>

> ---
> drivers/edac/aspeed_edac.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/edac/aspeed_edac.c b/drivers/edac/aspeed_edac.c
> index b194658b8b5c..fbec28dc661d 100644
> --- a/drivers/edac/aspeed_edac.c
> +++ b/drivers/edac/aspeed_edac.c
> @@ -209,8 +209,8 @@ static int config_irq(void *ctx, struct platform_device *pdev)
> /* register interrupt handler */
> irq = platform_get_irq(pdev, 0);
> dev_dbg(&pdev->dev, "got irq %d\n", irq);
> - if (!irq)
> - return -ENODEV;
> + if (irq < 0)
> + return irq;
>
> rc = devm_request_irq(&pdev->dev, irq, mcr_isr, IRQF_TRIGGER_HIGH,
> DRV_NAME, ctx);
> --
> 2.17.1
>
>