linux-kernel - Re: [patch] drm/amd: cleanup get_mfd_cell_dev()

Open Source and information security mailing list archives

Date:	Fri, 26 Feb 2016 12:46:58 -0500
From:	Alex Deucher <alexdeucher@...il.com>
To:	Dan Carpenter <dan.carpenter@...cle.com>
Cc:	David Airlie <airlied@...ux.ie>,
	Maruthi Srinivas Bayyavarapu <Maruthi.Bayyavarapu@....com>,
	Jammy Zhou <Jammy.Zhou@....com>,
	kernel-janitors@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>,
	Maling list - DRI developers 
	<dri-devel@...ts.freedesktop.org>,
	Alex Deucher <alexander.deucher@....com>,
	Murali Krishna Vemuri <murali-krishna.vemuri@....com>
Subject: Re: [patch] drm/amd: cleanup get_mfd_cell_dev()

On Thu, Feb 25, 2016 at 2:47 AM, Dan Carpenter <dan.carpenter@...cle.com> wrote:
> It's simpler to just use snprintf() to print this to one buffer instead
> of using strcpy() and strcat().  Also using snprintf() is slightly safer
> than using sprintf().
>
> Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>

Applied.  Thanks!

>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
> index 9f8cfaa..d6b0bff 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
> @@ -240,12 +240,10 @@ static int acp_poweron(struct generic_pm_domain *genpd)
>  static struct device *get_mfd_cell_dev(const char *device_name, int r)
>  {
>         char auto_dev_name[25];
> -       char buf[8];
>         struct device *dev;
>
> -       sprintf(buf, ".%d.auto", r);
> -       strcpy(auto_dev_name, device_name);
> -       strcat(auto_dev_name, buf);
> +       snprintf(auto_dev_name, sizeof(auto_dev_name),
> +                "%s.%d.auto", device_name, r);
>         dev = bus_find_device_by_name(&platform_bus_type, NULL, auto_dev_name);
>         dev_info(dev, "device %s added to pm domain\n", auto_dev_name);
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@...ts.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

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