[PATCH] drm/scheduler: fix drm_sched_job_add_implicit_dependencies

[Nicolas Frattaroli]

On Dienstag, 19. Oktober 2021 13:27:06 CEST Christian König wrote:
> Trivial fix since we now need to grab a reference to the fence we have
> added. Previously the dma_resv function where doing that for us.
> 
> Signed-off-by: Christian König <christian.koenig at amd.com>
> Fixes: 9c2ba265352a drm/scheduler: ("use new iterator in drm_sched_job_add_implicit_dependencies v2")
> ---
>  drivers/gpu/drm/scheduler/sched_main.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c
> index 5bc5f775abe1..94fe51b3caa2 100644
> --- a/drivers/gpu/drm/scheduler/sched_main.c
> +++ b/drivers/gpu/drm/scheduler/sched_main.c
> @@ -707,6 +707,9 @@ int drm_sched_job_add_implicit_dependencies(struct drm_sched_job *job,
>  		ret = drm_sched_job_add_dependency(job, fence);
>  		if (ret)
>  			return ret;
> +
> +		/* Make sure to grab an additional ref on the added fence */
> +		dma_fence_get(fence);
>  	}
>  	return 0;
>  }
> 

Tested-by: Nicolas Frattaroli <frattaroli.nicolas at gmail.com>

Fixes it, thank you!