[PATCH] net: xilinx: axienet: Propagate errors from optional IRQ lookup

[Andrew Lunn]

On Wed, Aug 12, 2026 at 01:14:38PM +0700, Bui Duc Phuc wrote:
> Hi Andrew,
> 
> Thank you for your review.
> 
> > > platform_get_irq_optional() returns a positive IRQ number on success or
> > > a negative error code on failure.
> ........
> > >       /* Check for Ethernet core IRQ (optional) */
> > > -     if (lp->eth_irq <= 0)
> > > +     if (lp->eth_irq < 0)
> > >               dev_info(&pdev->dev, "Ethernet core IRQ not defined\n");
> >
> > What has this change got to do with what is described in the commit
> > message? If you think this is a needed change, please put it in a
> > commit of its own, with a good commit message.
> >
> 
> lp->eth_irq is assigned from platform_get_irq_optional(), which returns a
> positive IRQ number on success or a negative error code on failure.
> Therefore, a value of 0 is not possible here, so changing <= 0  to  < 0
> is directly related to the error handling described in the commit message.

I think this is a separate change. You can then reference the
documentation, and its example:

https://elixir.bootlin.com/linux/v7.1.8/source/drivers/base/platform.c#L270

	Andrew