Re: [PATCH] iio: adc: cpcap: fix incorrect validation

[Tony Lindgren]

* Sebastian Reichel <sre@xxxxxxxxxx> [171112 18:30]:
> Hi,
> 
> On Mon, Nov 13, 2017 at 12:01:20AM +0800, Pan Bian wrote:
> > Function platform_get_irq_byname() returns a negative error code on
> > failure, and a zero or positive number on success. However, in function
> > cpcap_adc_probe(), positive IRQ numbers are also taken as error cases.
> > Use "if (ddata->irq < 0)" instead of "if (!ddata->irq)" to validate the
> > return value of platform_get_irq_byname().
> > 
> > Signed-off-by: Pan Bian <bianpan2016@xxxxxxx>
> > ---
> 
> Reviewed-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxxxx>

Acked-by: Tony Lindgren <tony@xxxxxxxxxxx>