On Sun, Jul 04, 2021 at 05:47:54PM +0300, Sergey Shtylyov wrote:
> Iff platform_get_irq() returns 0 for the main IRQ, the driver's probe()
> method will return 0 early (as if the method's call was successful).
> Let's consider IRQ0 valid for simplicity -- devm_request_irq() can always
> override that decision...
> 
> Fixes: 2bbd681ba2b ("i2c: xlp9xx: Driver for Netlogic XLP9XX/5XX I2C controller")
> Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
> 

George, do you like this patch?

> ---
>  drivers/i2c/busses/i2c-xlp9xx.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> Index: linux/drivers/i2c/busses/i2c-xlp9xx.c
> ===================================================================
> --- linux.orig/drivers/i2c/busses/i2c-xlp9xx.c
> +++ linux/drivers/i2c/busses/i2c-xlp9xx.c
> @@ -517,7 +517,7 @@ static int xlp9xx_i2c_probe(struct platf
>  		return PTR_ERR(priv->base);
>  
>  	priv->irq = platform_get_irq(pdev, 0);
> -	if (priv->irq <= 0)
> +	if (priv->irq < 0)
>  		return priv->irq;
>  	/* SMBAlert irq */
>  	priv->alert_data.irq = platform_get_irq(pdev, 1);