Re: [PATCH 2/6 v3] mmc: s3cmci: Fix platform_get_irq's error checking

From: Ulf Hansson
Date: Fri Dec 15 2017 - 04:17:55 EST


On 19 November 2017 at 05:52, Arvind Yadav <arvind.yadav.cs@xxxxxxxxx> wrote:
> The platform_get_irq() function returns negative if an error occurs.
> zero or positive number on success. platform_get_irq() error checking
> for zero is not correct.
>
> Signed-off-by: Arvind Yadav <arvind.yadav.cs@xxxxxxxxx>

Thanks, applied for next!

Kind regards
Uffe

> ---
> changes in v2 :
> Add failure case '<= 0' instead of '< 0'. IRQ0 is not valid.
> changes in v3 :
> return -EINVAL instead of host->irq.
>
> drivers/mmc/host/s3cmci.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c
> index f7f157a..36daee1 100644
> --- a/drivers/mmc/host/s3cmci.c
> +++ b/drivers/mmc/host/s3cmci.c
> @@ -1658,7 +1658,7 @@ static int s3cmci_probe(struct platform_device *pdev)
> }
>
> host->irq = platform_get_irq(pdev, 0);
> - if (host->irq == 0) {
> + if (host->irq <= 0) {
> dev_err(&pdev->dev, "failed to get interrupt resource.\n");
> ret = -EINVAL;
> goto probe_iounmap;
> --
> 2.7.4
>