[PATCH 2/2] drm/auth: drop unnessesary variable assignments

Sam Ravnborg sam at ravnborg.org
Sat May 30 07:48:30 UTC 2020


Hi Emil.

On Fri, May 29, 2020 at 10:48:07PM +0100, Emil Velikov wrote:
> The variables are already the exact same value or will be overwritten
> shortly afterwords. In either case there's no functional difference.
s/afterwords/afterwards/

> 
> Cc: David Airlie <airlied at linux.ie>
> Cc: Daniel Vetter <daniel at ffwll.ch>
> Signed-off-by: Emil Velikov <emil.l.velikov at gmail.com>
> ---
>  drivers/gpu/drm/drm_auth.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_auth.c b/drivers/gpu/drm/drm_auth.c
> index db701a9e9393..5ae5623f2482 100644
> --- a/drivers/gpu/drm/drm_auth.c
> +++ b/drivers/gpu/drm/drm_auth.c
> @@ -215,7 +215,7 @@ drm_master_check_perm(struct drm_device *dev, struct drm_file *file_priv)
>  int drm_setmaster_ioctl(struct drm_device *dev, void *data,
>  			struct drm_file *file_priv)
>  {
> -	int ret = 0;
> +	int ret;

This was the redundant asignment I mentioned in first mail - good.
>  
>  	mutex_lock(&dev->master_mutex);
>  
> @@ -282,7 +282,6 @@ int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
>  
>  	if (file_priv->master->lessor != NULL) {
>  		DRM_DEBUG_LEASE("Attempt to drop lessee %d as master\n", file_priv->master->lessee_id);
> -		ret = -EINVAL;
This is wrong. ret is 0 when this code is reached, so we loose the error
value if this code-path is triggered.
Or I miss something??

	Sam
>  		goto out_unlock;
>  	}
>  
> -- 
> 2.25.1
> 
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