linux-kernel - Re: [PATCH] video: omapfb: Use scnprintf() instead of snprintf()

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Date:   Thu, 18 Nov 2021 09:33:46 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Guo Zhengkui <guozhengkui@...o.com>
Cc:     "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Sam Ravnborg <sam@...nborg.org>,
        "open list:OMAP FRAMEBUFFER SUPPORT" <linux-fbdev@...r.kernel.org>,
        "open list:OMAP FRAMEBUFFER SUPPORT" <linux-omap@...r.kernel.org>,
        "open list:FRAMEBUFFER LAYER" <dri-devel@...ts.freedesktop.org>,
        open list <linux-kernel@...r.kernel.org>, kernel@...o.com,
        Julia Lawall <Julia.Lawall@...ia.fr>,
        Gilles Muller <Gilles.Muller@...ia.fr>,
        Nicolas Palix <nicolas.palix@...g.fr>, cocci@...ia.fr
Subject: Re: [PATCH] video: omapfb: Use scnprintf() instead of snprintf()

Hi Guo,

CC cocci

On Wed, Nov 17, 2021 at 1:58 PM Guo Zhengkui <guozhengkui@...o.com> wrote:
> Fix following warnings:
> ./drivers/video/fbdev/omap/omapfb_main.c:1382:8-16:
> WARNING: use scnprintf or sprintf
> ./drivers/video/fbdev/omap/omapfb_main.c:1306:8-16:
> WARNING: use scnprintf or sprintf
>
> Signed-off-by: Guo Zhengkui <guozhengkui@...o.com>

Thanks for your patch!

> --- a/drivers/video/fbdev/omap/omapfb_main.c
> +++ b/drivers/video/fbdev/omap/omapfb_main.c
> @@ -1303,7 +1303,7 @@ static ssize_t omapfb_show_panel_name(struct device *dev,
>  {
>         struct omapfb_device *fbdev = dev_get_drvdata(dev);
>
> -       return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->panel->name);
> +       return scnprintf(buf, PAGE_SIZE, "%s\n", fbdev->panel->name);
>  }

I guess all of these should use sysfs_emit() instead.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds