Re: [PATCH] drm/etnaviv: Add missing pm_runtime_put

[Lucas Stach]

Am Dienstag, dem 18.01.2022 um 06:16 -0800 schrieb Yongzhi Liu:
> pm_runtime_get_sync() increments the runtime PM usage counter even
> when it returns an error code, thus a matching decrement is needed
> on the error handling path to keep the counter balanced.
> 
Instead of adding more error handling code here, I would prefer to
convert this to pm_runtime_resume_and_get to avoid this issue.

Regards,
Lucas

> Signed-off-by: Yongzhi Liu <lyz_cs@xxxxxxxxxx>
> ---
>  drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
> index 242a5fd..5e81a98 100644
> --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
> +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
> @@ -1714,6 +1714,9 @@ static int etnaviv_gpu_bind(struct device *dev, struct device *master,
>  	return 0;
>  
>  out_sched:
> +#ifdef CONFIG_PM
> +	pm_runtime_put_autosuspend(gpu->dev);
> +#endif
>  	etnaviv_sched_fini(gpu);
>  
>  out_workqueue: