linux-kernel - Re: [PATCH] drm: nouveau: Replace sprintf() with sysfs

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Message-ID: <eb44bd6d75630cb091f6b2c30d5ccc29fef62285.camel@redhat.com>
Date: Fri, 05 Dec 2025 15:12:25 -0500
From: Lyude Paul <lyude@...hat.com>
To: Madhur Kumar <madhurkumar004@...il.com>, dakr@...nel.org
Cc: maarten.lankhorst@...ux.intel.com, mripard@...nel.org,
 tzimmermann@...e.de, 	airlied@...il.com, simona@...ll.ch,
 dri-devel@...ts.freedesktop.org, 	linux-kernel@...r.kernel.org,
 nouveau@...ts.freedesktop.org
Subject: Re: [PATCH] drm: nouveau: Replace sprintf() with sysfs_emit()

Reviewed-by: Lyude Paul <lyude@...hat.com>

Will push in a moment

On Fri, 2025-12-05 at 14:48 +0530, Madhur Kumar wrote:
> Replace sprintf() calls with sysfs_emit() to follow current kernel
> coding standards.
> 
> sysfs_emit() is the preferred method for formatting sysfs output as it
> provides better bounds checking and is more secure.
> 
> Signed-off-by: Madhur Kumar <madhurkumar004@...il.com>
> ---
>  drivers/gpu/drm/nouveau/nouveau_hwmon.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/nouveau/nouveau_hwmon.c b/drivers/gpu/drm/nouveau/nouveau_hwmon.c
> index 5c07a9ee8b77..34effe6d86ad 100644
> --- a/drivers/gpu/drm/nouveau/nouveau_hwmon.c
> +++ b/drivers/gpu/drm/nouveau/nouveau_hwmon.c
> @@ -125,7 +125,7 @@ nouveau_hwmon_get_pwm1_max(struct device *d,
>  	if (ret < 0)
>  		return ret;
>  
> -	return sprintf(buf, "%i\n", ret);
> +	return sysfs_emit(buf, "%i\n", ret);
>  }
>  
>  static ssize_t
> @@ -141,7 +141,7 @@ nouveau_hwmon_get_pwm1_min(struct device *d,
>  	if (ret < 0)
>  		return ret;
>  
> -	return sprintf(buf, "%i\n", ret);
> +	return sysfs_emit(buf, "%i\n", ret);
>  }
>  
>  static ssize_t

-- 
Cheers,
 Lyude Paul (she/her)
 Senior Software Engineer at Red Hat

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