Re: [PATCH 01/19] drm/msm: remove dangling submitqueue references

[Bjorn Andersson]

On Fri 14 Aug 02:40 UTC 2020, Rob Clark wrote:

> From: Rob Clark <robdclark@xxxxxxxxxxxx>
> 
> Currently it doesn't matter, since we free the ctx immediately.  But
> when we start refcnt'ing the ctx, we don't want old dangling list
> entries to hang around.
> 
> Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx>

Reviewed-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>

> ---
>  drivers/gpu/drm/msm/msm_submitqueue.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/msm/msm_submitqueue.c b/drivers/gpu/drm/msm/msm_submitqueue.c
> index a1d94be7883a..90c9d84e6155 100644
> --- a/drivers/gpu/drm/msm/msm_submitqueue.c
> +++ b/drivers/gpu/drm/msm/msm_submitqueue.c
> @@ -49,8 +49,10 @@ void msm_submitqueue_close(struct msm_file_private *ctx)
>  	 * No lock needed in close and there won't
>  	 * be any more user ioctls coming our way
>  	 */
> -	list_for_each_entry_safe(entry, tmp, &ctx->submitqueues, node)
> +	list_for_each_entry_safe(entry, tmp, &ctx->submitqueues, node) {
> +		list_del(&entry->node);
>  		msm_submitqueue_put(entry);
> +	}
>  }
>  
>  int msm_submitqueue_create(struct drm_device *drm, struct msm_file_private *ctx,
> -- 
> 2.26.2
>