[PATCH v2 1/1] PCI: layerscape-ep: set 64-bit DMA mask

[Christoph Hellwig]

> +	/* set 64-bit DMA mask and coherent DMA mask */
> +	ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64));

The comment is a bit silly :)

> +	if (ret)
> +		return ret;

Also no need to check the return value when setting a 64-bit mask,
but I guess it desn't hurt here.