drm/backlight: initialize struct backlight_properties properly

The power field was never correctly initialized.

[airlied: just took the two drm specific bits]

Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

2 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index 2b2e011e9055..2a1625d84a69 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -368,6 +368,7 @@ int intel_panel_setup_backlight(struct drm_device *dev)
         else
                 return -ENODEV;
 
+        memset(&props, 0, sizeof(props));
         props.type = BACKLIGHT_RAW;
         props.max_brightness = intel_panel_get_max_backlight(dev);
         dev_priv->backlight =
diff --git a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
index 42db254f6bb0..a0c82229e8f0 100644
--- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
@@ -369,6 +369,7 @@ void radeon_legacy_backlight_init(struct radeon_encoder *radeon_encoder,
                 goto error;
         }
 
+        memset(&props, 0, sizeof(props));
         props.max_brightness = MAX_RADEON_LEVEL;
         props.type = BACKLIGHT_RAW;
         bd = backlight_device_register("radeon_bl", &drm_connector->kdev,