From: Ivan Khoronzhuk <ivan.khoronz...@linaro.org>
Date: Wed, 6 Dec 2017 16:54:09 +0200
> @@ -3065,10 +3065,16 @@ static int cpsw_probe(struct platform_device *pdev)
> }
>
> cpsw->txv[0].ch = cpdma_chan_create(cpsw->dma, 0, cpsw_tx_handler, 0);
> + if (WARN_ON(IS_ERR(cpsw->txv[0].ch))) {
> + dev_err(priv->dev, "error initializing tx dma channel\n");
> + ret = PTR_ERR(cpsw->txv[0].ch);
> + goto clean_dma_ret;
> + }
> +
You're already emitting a proper dev_err() message, therefore WARN_ON()
is a duplicate notification to the logs and therefore not appropriate.
