Re: [PATCH 3/4 v2] net: mvmdio: enhance driver to support SMIerror/done interrupts

[Russell King - ARM Linux]

On Thu, Mar 14, 2013 at 07:08:34PM +0100, Florian Fainelli wrote:
> +	if (dev->err_interrupt == NO_IRQ) {
...
> +	init_waitqueue_head(&dev->smi_busy_wait);
> +
> +	dev->err_interrupt = platform_get_irq(pdev, 0);
> +	if (dev->err_interrupt != -ENXIO) {
...
> +	} else
> +		dev->err_interrupt = NO_IRQ;


FYI, NO_IRQ is not supposed to be used anymore (we're supposed to be
removing it).  platform_get_irq() returns negative numbers for failure,
so why not test for < 0 in both the above tests, or maybe <= 0 (as
IRQ0 is also not supposed to be valid.)?
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