diff mbox series

drm/arm/malidp: use sysfs_emit in show function callback

Message ID Y9Q5Tt8c9WBDxeyV@ubun2204.myguest.virtualbox.org
State New
Headers
Series drm/arm/malidp: use sysfs_emit in show function callback |

Commit Message

Deepak R Varma Jan. 27, 2023, 8:51 p.m. UTC 
  According to Documentation/filesystems/sysfs.rst, the show() callback
function of kobject attributes should strictly use sysfs_emit() instead
of sprintf() family functions.
Issue identified using the device_attr_show.cocci Coccinelle script.

Signed-off-by: Deepak R Varma <drv@mailo.com>
---
 drivers/gpu/drm/arm/malidp_drv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Liviu Dudau Jan. 30, 2023, 12:32 p.m. UTC | #1 
On Sat, Jan 28, 2023 at 02:21:26AM +0530, Deepak R Varma wrote:
> According to Documentation/filesystems/sysfs.rst, the show() callback
> function of kobject attributes should strictly use sysfs_emit() instead
> of sprintf() family functions.
> Issue identified using the device_attr_show.cocci Coccinelle script.
> 
> Signed-off-by: Deepak R Varma <drv@mailo.com>

Acked-by: Liviu Dudau <liviu.dudau@arm.com>

I will push the change into drm-misc-next by the end of the week.

Best regards,
Liviu

> ---
>  drivers/gpu/drm/arm/malidp_drv.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c
> index 589c1c66a6dc..cf040e2e9efe 100644
> --- a/drivers/gpu/drm/arm/malidp_drv.c
> +++ b/drivers/gpu/drm/arm/malidp_drv.c
> @@ -649,7 +649,7 @@ static ssize_t core_id_show(struct device *dev, struct device_attribute *attr,
>  	struct drm_device *drm = dev_get_drvdata(dev);
>  	struct malidp_drm *malidp = drm_to_malidp(drm);
>  
> -	return snprintf(buf, PAGE_SIZE, "%08x\n", malidp->core_id);
> +	return sysfs_emit(buf, "%08x\n", malidp->core_id);
>  }
>  
>  static DEVICE_ATTR_RO(core_id);
> -- 
> 2.34.1
> 
> 
>
diff mbox series

Patch

diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c
index 589c1c66a6dc..cf040e2e9efe 100644
--- a/drivers/gpu/drm/arm/malidp_drv.c
+++ b/drivers/gpu/drm/arm/malidp_drv.c
@@ -649,7 +649,7 @@  static ssize_t core_id_show(struct device *dev, struct device_attribute *attr,
 	struct drm_device *drm = dev_get_drvdata(dev);
 	struct malidp_drm *malidp = drm_to_malidp(drm);
 
-	return snprintf(buf, PAGE_SIZE, "%08x\n", malidp->core_id);
+	return sysfs_emit(buf, "%08x\n", malidp->core_id);
 }
 
 static DEVICE_ATTR_RO(core_id);