Re: [PATCH v1] platform/x86: i2c-multi-instantiate: Fail the probe if no IRQ provided

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On Fri, Oct 11, 2019 at 05:47:12PM +0300, Andy Shevchenko wrote:
> For APIC case of interrupt we don't fail a ->probe() of the driver,
> which makes kernel to print a lot of warnings from the children.
> 
> We have two options here:
> - switch to platform_get_irq_optional(), though it won't stop children
>   to be probed and failed
> - fail the ->probe() of i2c-multi-instantiate
> 
> Since the in reality we never had devices in the wild where IRQ resource
> is optional, the latter solution suits the best.
> 
> Fixes: 799d3379a672 ("platform/x86: i2c-multi-instantiate: Introduce IOAPIC IRQ support")
> Cc: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
> Cc: Hans de Goede <hdegoede@xxxxxxxxxx>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>

Reviewed-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>

> ---
>  drivers/platform/x86/i2c-multi-instantiate.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/platform/x86/i2c-multi-instantiate.c b/drivers/platform/x86/i2c-multi-instantiate.c
> index ea68f6ed66ae..ffb8d5d1eb5f 100644
> --- a/drivers/platform/x86/i2c-multi-instantiate.c
> +++ b/drivers/platform/x86/i2c-multi-instantiate.c
> @@ -108,6 +108,7 @@ static int i2c_multi_inst_probe(struct platform_device *pdev)
>  			if (ret < 0) {
>  				dev_dbg(dev, "Error requesting irq at index %d: %d\n",
>  					inst_data[i].irq_idx, ret);
> +				goto error;
>  			}
>  			board_info.irq = ret;
>  			break;
> -- 
> 2.23.0

thanks,

-- 
heikki



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