Re: [PATCH 1/2] serial: 8250: Simplify with dev_err_probe()

[Florian Fainelli]

On 9/1/2020 8:30 AM, Krzysztof Kozlowski wrote:
> Common pattern of handling deferred probe can be simplified with
> dev_err_probe().  Less code and the error value gets printed.
>
> Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
> ---
>   drivers/tty/serial/8250/8250_bcm2835aux.c | 12 +++---------
>   drivers/tty/serial/8250/8250_ingenic.c    | 20 ++++++--------------
>   2 files changed, 9 insertions(+), 23 deletions(-)
>
> diff --git a/drivers/tty/serial/8250/8250_bcm2835aux.c b/drivers/tty/serial/8250/8250_bcm2835aux.c
> index 12d03e678295..fd95860cd661 100644
> --- a/drivers/tty/serial/8250/8250_bcm2835aux.c
> +++ b/drivers/tty/serial/8250/8250_bcm2835aux.c
> @@ -110,12 +110,8 @@ static int bcm2835aux_serial_probe(struct platform_device *pdev)
>   
>   	/* get the clock - this also enables the HW */
>   	data->clk = devm_clk_get(&pdev->dev, NULL);
> -	ret = PTR_ERR_OR_ZERO(data->clk);
> -	if (ret) {
> -		if (ret != -EPROBE_DEFER)
> -			dev_err(&pdev->dev, "could not get clk: %d\n", ret);
> -		return ret;
> -	}
> +	if (IS_ERR(data->clk))
> +		return dev_err_probe(&pdev->dev, PTR_ERR(data->clk), "could not get clk\n");

For 8250_bcm2835aux.c:

Acked-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
--
Florian