linux-kernel - Re: [PATCH 01/41] video: fbdev: omapfb: lcd_ams

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Date:   Wed, 20 Apr 2022 12:24:08 +0300
From:   Sergei Shtylyov <sergei.shtylyov@...il.com>
To:     Arnd Bergmann <arnd@...nel.org>, linux-omap@...r.kernel.org,
        tony@...mide.com, aaro.koskinen@....fi, jmkrzyszt@...il.com
Cc:     Arnd Bergmann <arnd@...db.de>,
        Russell King <linux@...linux.org.uk>,
        Paul Walmsley <paul@...an.com>,
        Kevin Hilman <khilman@...nel.org>,
        Peter Ujfalusi <peter.ujfalusi@...il.com>,
        Vinod Koul <vkoul@...nel.org>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Dominik Brodowski <linux@...inikbrodowski.net>,
        Mark Brown <broonie@...nel.org>,
        Felipe Balbi <balbi@...nel.org>,
        Alan Stern <stern@...land.harvard.edu>,
        Lee Jones <lee.jones@...aro.org>,
        Daniel Thompson <daniel.thompson@...aro.org>,
        Jingoo Han <jingoohan1@...il.com>,
        Helge Deller <deller@....de>,
        Linus Walleij <linus.walleij@...aro.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org, dmaengine@...r.kernel.org,
        linux-input@...r.kernel.org, linux-mmc@...r.kernel.org,
        linux-serial@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-fbdev@...r.kernel.org, alsa-devel@...a-project.org
Subject: Re: [PATCH 01/41] video: fbdev: omapfb: lcd_ams_delta: fix unused
 variable warning

Hello!

On 4/19/22 4:36 PM, Arnd Bergmann wrote:

> From: Arnd Bergmann <arnd@...db.de>
> 
> A recent cleanup patch removed the only reference to a local variable
> in some configurations.
> 
> Move the variable into the one block it is still used in, inside
> of an #ifdef, to avoid this warning.
> 
> Fixes: 9d773f103b89 ("video: fbdev: omapfb: lcd_ams_delta: Make use of the helper function dev_err_probe()")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> ---
>  drivers/video/fbdev/omap/lcd_ams_delta.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/video/fbdev/omap/lcd_ams_delta.c b/drivers/video/fbdev/omap/lcd_ams_delta.c
> index bbf871f9d862..01944ce46aa1 100644
> --- a/drivers/video/fbdev/omap/lcd_ams_delta.c
> +++ b/drivers/video/fbdev/omap/lcd_ams_delta.c
[...]
> @@ -145,7 +144,7 @@ static int ams_delta_panel_probe(struct platform_device *pdev)
>  						&ams_delta_lcd_ops);
>  
>  	if (IS_ERR(lcd_device)) {
> -		ret = PTR_ERR(lcd_device);
> +		int ret = PTR_ERR(lcd_device);

   How about inserting an empty line after declaration?

>  		dev_err(&pdev->dev, "failed to register device\n");
>  		return ret;
>  	}

MBR, Sergey