linux-kernel - Re: [PATCH 02/11] usb: dwc3: st: simplify with dev_err

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20240827011901.zcu3x24ph3bmfwap@synopsys.com>
Date: Tue, 27 Aug 2024 01:19:04 +0000
From: Thinh Nguyen <Thinh.Nguyen@...opsys.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
CC: Patrice Chotard <patrice.chotard@...s.st.com>,
        Thinh Nguyen <Thinh.Nguyen@...opsys.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        Michal Simek <michal.simek@....com>,
        "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>,
        "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "imx@...ts.linux.dev" <imx@...ts.linux.dev>,
        "linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>
Subject: Re: [PATCH 02/11] usb: dwc3: st: simplify with dev_err_probe

On Wed, Aug 14, 2024, Krzysztof Kozlowski wrote:
> Use dev_err_probe() to make the error paths a bit simpler.

I think it makes more sense to note that this helps with cases of
-EPROBE_DEFER than making this simpler. Regardless, this is an
improvement.

Acked-by: Thinh Nguyen <Thinh.Nguyen@...opsys.com>

Thanks,
Thinh

> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> ---
>  drivers/usb/dwc3/dwc3-st.c | 11 +++++------
>  1 file changed, 5 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/usb/dwc3/dwc3-st.c b/drivers/usb/dwc3/dwc3-st.c
> index 98f43d7082d7..7a0b1821768a 100644
> --- a/drivers/usb/dwc3/dwc3-st.c
> +++ b/drivers/usb/dwc3/dwc3-st.c
> @@ -237,10 +237,9 @@ static int st_dwc3_probe(struct platform_device *pdev)
>  
>  	dwc3_data->rstc_pwrdn =
>  		devm_reset_control_get_exclusive(dev, "powerdown");
> -	if (IS_ERR(dwc3_data->rstc_pwrdn)) {
> -		dev_err(&pdev->dev, "could not get power controller\n");
> -		return PTR_ERR(dwc3_data->rstc_pwrdn);
> -	}
> +	if (IS_ERR(dwc3_data->rstc_pwrdn))
> +		return dev_err_probe(dev, PTR_ERR(dwc3_data->rstc_pwrdn),
> +				     "could not get power controller\n");
>  
>  	/* Manage PowerDown */
>  	reset_control_deassert(dwc3_data->rstc_pwrdn);
> @@ -248,8 +247,8 @@ static int st_dwc3_probe(struct platform_device *pdev)
>  	dwc3_data->rstc_rst =
>  		devm_reset_control_get_shared(dev, "softreset");
>  	if (IS_ERR(dwc3_data->rstc_rst)) {
> -		dev_err(&pdev->dev, "could not get reset controller\n");
> -		ret = PTR_ERR(dwc3_data->rstc_rst);
> +		ret = dev_err_probe(dev, PTR_ERR(dwc3_data->rstc_rst),
> +				    "could not get reset controller\n");
>  		goto undo_powerdown;
>  	}
>  
> 
> -- 
> 2.43.0
>