Re: [PATCH 4/4] dmaengine: pxa_dma: fix the maximum requestor line

From: Vinod Koul
Date: Mon Feb 15 2016 - 11:31:41 EST


On Thu, Feb 11, 2016 at 10:23:18PM +0100, Robert Jarzmik wrote:
> @@ -1399,13 +1405,17 @@ static int pxad_probe(struct platform_device *op)
> return PTR_ERR(pdev->base);
>
> of_id = of_match_device(pxad_dt_ids, &op->dev);
> - if (of_id)
> + if (of_id) {
> of_property_read_u32(op->dev.of_node, "#dma-channels",
> &dma_channels);
> - else if (pdata && pdata->dma_channels)
> + of_property_read_u32(op->dev.of_node, "#requestors",
> + &nb_requestors);

I think we should check the return value here. This might be err in case
when we have older DT on platform, but still should work with default in
that case

> + } else if (pdata && pdata->dma_channels) {
> dma_channels = pdata->dma_channels;
> - else
> + nb_requestors = pdata->nb_requestors;
> + } else {
> dma_channels = 32; /* default 32 channel */
> + }

--
~Vinod