Re: [PATCH] usb: dwc3: qcom: simplify error check in dwc3_qcom_find_num_ports()

[Dan Carpenter <dan.carpenter@linaro.org>]

On Thu, Feb 19, 2026 at 10:55:29PM +0000, Thinh Nguyen wrote:
> On Wed, Feb 18, 2026, Zeeshan Ahmad wrote:
> > diff --git a/drivers/usb/dwc3/dwc3-qcom-legacy.c b/drivers/usb/dwc3/dwc3-qcom-legacy.c
> > index d3fad0fcfdac..34c578309802 100644
> > --- a/drivers/usb/dwc3/dwc3-qcom-legacy.c
> > +++ b/drivers/usb/dwc3/dwc3-qcom-legacy.c
> > @@ -620,14 +620,14 @@ static int dwc3_qcom_find_num_ports(struct platform_device *pdev)
> >  	int irq;
> >  
> >  	irq = platform_get_irq_byname_optional(pdev, "dp_hs_phy_1");
> > -	if (irq <= 0)
> > +	if (irq < 0)
> >  		return 1;
> >  
> >  	for (port_num = 2; port_num <= DWC3_QCOM_MAX_PORTS; port_num++) {
> >  		sprintf(irq_name, "dp_hs_phy_%d", port_num);
> >  
> >  		irq = platform_get_irq_byname_optional(pdev, irq_name);
> > -		if (irq <= 0)
> > +		if (irq < 0)
> >  			return port_num - 1;
> >  	}
> >  
> > -- 
> > 2.43.0
> > 
> 
> Since this is not a fix, I prefer new development to be on the dwc3-qcom
> and not the dwc3-qcom-legacy glue.

There might be some static checker warnings for these?  Smatch only
warns if people do an explicit zero check since
platform_get_irq_byname_optional() can never return zero.

regards,
dan carpenter