linux-kernel - Re: [PATCH] watchdog: cadence: Do not show error in case of deferred probe

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Message-ID: <20191008152220.GB15540@roeck-us.net>
Date:   Tue, 8 Oct 2019 08:22:20 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Michal Simek <michal.simek@...inx.com>
Cc:     linux-kernel@...r.kernel.org, monstr@...str.eu, git@...inx.com,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        linux-watchdog@...r.kernel.org
Subject: Re: [PATCH] watchdog: cadence: Do not show error in case of deferred
 probe

On Tue, Oct 08, 2019 at 04:29:10PM +0200, Michal Simek wrote:
> There is no reason to show error message if clocks are not ready yet.
> 
> Signed-off-by: Michal Simek <michal.simek@...inx.com>

Reviewed-by: Guenter Roeck <linux@...ck-us.net>

> ---
> 
>  drivers/watchdog/cadence_wdt.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/watchdog/cadence_wdt.c b/drivers/watchdog/cadence_wdt.c
> index 76d855ce25f3..672b184da875 100644
> --- a/drivers/watchdog/cadence_wdt.c
> +++ b/drivers/watchdog/cadence_wdt.c
> @@ -335,8 +335,10 @@ static int cdns_wdt_probe(struct platform_device *pdev)
>  
>  	wdt->clk = devm_clk_get(dev, NULL);
>  	if (IS_ERR(wdt->clk)) {
> -		dev_err(dev, "input clock not found\n");
> -		return PTR_ERR(wdt->clk);
> +		ret = PTR_ERR(wdt->clk);
> +		if (ret != -EPROBE_DEFER)
> +			dev_err(dev, "input clock not found\n");
> +		return ret;
>  	}
>  
>  	ret = clk_prepare_enable(wdt->clk);
> -- 
> 2.17.1
>