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SubjectRe: [PATCH 3/6 v3] mmc: sdhci-acpi: Handle return value of platform_get_irq
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On 19/11/17 06:52, Arvind Yadav wrote:
> platform_get_irq() can fail here and we must check its return value.
>
> Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>

Acked-by: Adrian Hunter <adrian.hunter@intel.com>

> ---
> 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/sdhci-acpi.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
> index b988997..0d9965b 100644
> --- a/drivers/mmc/host/sdhci-acpi.c
> +++ b/drivers/mmc/host/sdhci-acpi.c
> @@ -566,6 +566,10 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
> host->hw_name = "ACPI";
> host->ops = &sdhci_acpi_ops_dflt;
> host->irq = platform_get_irq(pdev, 0);
> + if (host->irq <= 0) {
> + err = -EINVAL;
> + goto err_free;
> + }
>
> host->ioaddr = devm_ioremap_nocache(dev, iomem->start,
> resource_size(iomem));
>

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