[PATCH] drm: Show leaked connectors upon unload

[Maarten Lankhorst]

Op 19-01-17 om 10:05 schreef Chris Wilson:
> After warning that the connector list is not empty on device
> unregistration (i.e. module unload) also print out which connectors are
> still hanging around to aide finding the leak.
>
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> ---
>  drivers/gpu/drm/drm_mode_config.c | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/drm_mode_config.c b/drivers/gpu/drm/drm_mode_config.c
> index ed1ee5a44a7b..884cc4d26fb5 100644
> --- a/drivers/gpu/drm/drm_mode_config.c
> +++ b/drivers/gpu/drm/drm_mode_config.c
> @@ -421,7 +421,12 @@ void drm_mode_config_cleanup(struct drm_device *dev)
>  		drm_connector_unreference(connector);
>  	}
>  	drm_connector_list_iter_put(&conn_iter);
> -	WARN_ON(!list_empty(&dev->mode_config.connector_list));
> +	if (WARN_ON(!list_empty(&dev->mode_config.connector_list))) {
> +		drm_connector_list_iter_get(dev, &conn_iter);
> +		drm_for_each_connector_iter(connector, &conn_iter)
> +			DRM_ERROR("connector %s leaked!\n", connector->name);
> +		drm_connector_list_iter_put(&conn_iter);
> +	}
>  
>  	list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
>  				 head) {

Bikeshed perhaps, but maybe change to [CONNECTOR:%d:%s] connector leaked on cleanup?

~Maarten