On 3/31/26 11:20, Thomas Hellström wrote:
> The code was reading drm_exec internal state to determine whether
> the drm_exec structure had been initialized or not, and therefore
> needed cleaning up, relying on undocumented behaviour.
> 
> Instead add a bool to struct msm_gem_submit to indicate whether
> drm_exec cleaning up is needed.
> 
> Signed-off-by: Thomas Hellström <[email protected]>

Acked-by: Christian König <[email protected]>

> ---
>  drivers/gpu/drm/msm/msm_gem.h        | 1 +
>  drivers/gpu/drm/msm/msm_gem_submit.c | 4 +++-
>  2 files changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/msm/msm_gem.h b/drivers/gpu/drm/msm/msm_gem.h
> index cb32093fda47..762e546d25ef 100644
> --- a/drivers/gpu/drm/msm/msm_gem.h
> +++ b/drivers/gpu/drm/msm/msm_gem.h
> @@ -452,6 +452,7 @@ struct msm_gem_submit {
>       bool bos_pinned : 1;
>       bool fault_dumped:1;/* Limit devcoredump dumping to one per submit */
>       bool in_rb : 1;     /* "sudo" mode, copy cmds into RB */
> +     bool has_exec : 1;  /* @exec is initialized. */
>       struct msm_ringbuffer *ring;
>       unsigned int nr_cmds;
>       unsigned int nr_bos;
> diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c 
> b/drivers/gpu/drm/msm/msm_gem_submit.c
> index 75d9f3574370..26ea8a28be47 100644
> --- a/drivers/gpu/drm/msm/msm_gem_submit.c
> +++ b/drivers/gpu/drm/msm/msm_gem_submit.c
> @@ -278,6 +278,7 @@ static int submit_lock_objects_vmbind(struct 
> msm_gem_submit *submit)
>       int ret = 0;
>  
>       drm_exec_init(&submit->exec, flags, submit->nr_bos);
> +     submit->has_exec = true;
>  
>       drm_exec_until_all_locked (&submit->exec) {
>               ret = drm_gpuvm_prepare_vm(submit->vm, exec, 1);
> @@ -304,6 +305,7 @@ static int submit_lock_objects(struct msm_gem_submit 
> *submit)
>               return submit_lock_objects_vmbind(submit);
>  
>       drm_exec_init(&submit->exec, flags, submit->nr_bos);
> +     submit->has_exec = true;
>  
>       drm_exec_until_all_locked (&submit->exec) {
>               ret = drm_exec_lock_obj(&submit->exec,
> @@ -523,7 +525,7 @@ static void submit_cleanup(struct msm_gem_submit *submit, 
> bool error)
>       if (error)
>               submit_unpin_objects(submit);
>  
> -     if (submit->exec.objects)
> +     if (submit->has_exec)
>               drm_exec_fini(&submit->exec);
>  
>       /* if job wasn't enqueued to scheduler, early retirement: */

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