[14/50] drm/i915/panel: Track temporary rpm wakeref

Submitted by Chris Wilson on Jan. 11, 2019, 11:52 p.m.

Details

Message ID 20190111235332.2032-14-chris@chris-wilson.co.uk
State New
Series "Series without cover letter"
Headers show

Commit Message

Chris Wilson Jan. 11, 2019, 11:52 p.m.
Keep track of the temporary rpm wakeref used for panel backlight access,
so that we can cancel it immediately upon release and so more clearly
identify leaks.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
---
 drivers/gpu/drm/i915/intel_panel.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

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diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index c2b7455a023e..93a2e4b5c54c 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -1203,17 +1203,18 @@  static int intel_backlight_device_get_brightness(struct backlight_device *bd)
 	struct intel_connector *connector = bl_get_data(bd);
 	struct drm_device *dev = connector->base.dev;
 	struct drm_i915_private *dev_priv = to_i915(dev);
+	intel_wakeref_t wakeref;
 	u32 hw_level;
 	int ret;
 
-	intel_runtime_pm_get(dev_priv);
+	wakeref = intel_runtime_pm_get(dev_priv);
 	drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
 
 	hw_level = intel_panel_get_backlight(connector);
 	ret = scale_hw_to_user(connector, hw_level, bd->props.max_brightness);
 
 	drm_modeset_unlock(&dev->mode_config.connection_mutex);
-	intel_runtime_pm_put_unchecked(dev_priv);
+	intel_runtime_pm_put(dev_priv, wakeref);
 
 	return ret;
 }