linux-kernel - Re: [PATCH v6 36/40] ata: pata_ep93xx: remove legacy pinctrl use

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Date:   Wed, 13 Dec 2023 20:16:26 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Nikita Shubin <nikita.shubin@...uefel.me>
Cc:     Hartley Sweeten <hsweeten@...ionengravers.com>,
        Alexander Sverdlin <alexander.sverdlin@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Sergey Shtylyov <s.shtylyov@....ru>,
        Damien Le Moal <dlemoal@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-ide@...r.kernel.org, Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH v6 36/40] ata: pata_ep93xx: remove legacy pinctrl use

On Tue, Dec 12, 2023 at 11:20:53AM +0300, Nikita Shubin wrote:
> Drop legacy acquire/release since we are using pinctrl for this now.

...

> -	if (IS_ERR(drv_data->dma_rx_channel)) {
> +	if (PTR_ERR_OR_ZERO(drv_data->dma_rx_channel)) {

This seems incorrect.

>  		ret = PTR_ERR(drv_data->dma_rx_channel);
>  		return dev_err_probe(dev, ret, "rx DMA setup failed");

		return dev_err_probe(...);

>  	}

I think you wanted

	ret = PTR_ERR_OR_ZERO(drv_data->dma_rx_channel);
	if (ret)
		return dev_err_probe(dev, ret, "rx DMA setup failed");

...

>  	drv_data->dma_tx_channel = dma_request_chan(&pdev->dev, "tx");
> -	if (IS_ERR(drv_data->dma_tx_channel)) {
> +	if (PTR_ERR_OR_ZERO(drv_data->dma_tx_channel)) {
>  		ret = PTR_ERR(drv_data->dma_tx_channel);
>  		dev_err_probe(dev, ret, "tx DMA setup failed");
>  		goto fail_release_rx;

Ditto.

-- 
With Best Regards,
Andy Shevchenko