drm/i915: Free memdup-ed DSI VBT data structures on driver_unload

Make intel_bios_cleanup function free the DSI VBT data structures which
are memdup-ed by parse_mipi_config() and parse_mipi_sequence().

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180214082151.25015-2-hdegoede@redhat.com
(cherry picked from commit e1b86c85f6c2029c31dba99823b6f3d9e15eaacd)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 57db816f962b..9a9b62c93889 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -1601,6 +1601,12 @@ void intel_bios_cleanup(struct drm_i915_private *dev_priv)
         dev_priv->vbt.sdvo_lvds_vbt_mode = NULL;
         kfree(dev_priv->vbt.lfp_lvds_vbt_mode);
         dev_priv->vbt.lfp_lvds_vbt_mode = NULL;
+        kfree(dev_priv->vbt.dsi.data);
+        dev_priv->vbt.dsi.data = NULL;
+        kfree(dev_priv->vbt.dsi.pps);
+        dev_priv->vbt.dsi.pps = NULL;
+        kfree(dev_priv->vbt.dsi.config);
+        dev_priv->vbt.dsi.config = NULL;
 }
 
 /**