[PATCH] iommu/riscv: Fix unsigned comparison with negative error code

[Joerg Roedel]

On Mon, Dec 22, 2025 at 06:15:49PM +0300, Alper Ak wrote:
> -	iommu->irqs_count = platform_irq_count(pdev);
> -	if (iommu->irqs_count <= 0)
> +	ret = platform_irq_count(pdev);
> +	if (ret < 0)
> +		return ret;
> +
> +	iommu->irqs_count = ret;
> +
> +	if (!iommu->irqs_count)
>  		return dev_err_probe(dev, -ENODEV,
>  				     "no IRQ resources provided\n");

Separate the ret < 0 and ret == 0 checks is wrong, just check them in one if
statement and return the dev_err_probe() value as before.

-Joerg