Re: [PATCH] usb: host: ehci-tegra: Fix error handling in tegra_ehci_probe()

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On Mon, Oct 26, 2020 at 05:06:57PM +0800, Tang Bin wrote:
> If the function platform_get_irq() failed, the negative value
> returned will not be detected here. So fix error handling in
> tegra_ehci_probe().
> 
> Fixes: 79ad3b5add4a ("usb: host: Add EHCI driver for NVIDIA Tegra SoCs")
> Signed-off-by: Tang Bin <tangbin@xxxxxxxxxxxxxxxxxxxx>
> ---
>  drivers/usb/host/ehci-tegra.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c
> index 75a075daf..7b0efaf15 100644
> --- a/drivers/usb/host/ehci-tegra.c
> +++ b/drivers/usb/host/ehci-tegra.c
> @@ -479,9 +479,9 @@ static int tegra_ehci_probe(struct platform_device *pdev)
>  	u_phy->otg->host = hcd_to_bus(hcd);
>  
>  	irq = platform_get_irq(pdev, 0);
> -	if (!irq) {
> -		err = -ENODEV;
> -		goto cleanup_phy;
> +	if (irq < 0) {
> +		err = irq;
> +		goto cleanup_phy;
>  	}
>  
>  	otg_set_host(u_phy->otg, &hcd->self);

Acked-by: Thierry Reding <treding@xxxxxxxxxx>

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