[PATCH 1/2] drm/i915: Free memdup-ed bios data structures on driver_unload

[Hans de Goede]

Add a new intel_bios_cleanup function to free memdup-ed bios data
structures and call it from i915_driver_unload().

Signed-off-by: Hans de Goede <hdegoede at redhat.com>
---
 drivers/gpu/drm/i915/i915_drv.c   |  2 ++
 drivers/gpu/drm/i915/i915_drv.h   |  1 +
 drivers/gpu/drm/i915/intel_bios.c | 11 +++++++++++
 3 files changed, 14 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 1ec12add34b2..4ecf41724183 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -1437,6 +1437,8 @@ void i915_driver_unload(struct drm_device *dev)
 
 	intel_modeset_cleanup(dev);
 
+	intel_bios_cleanup(dev_priv);
+
 	/*
 	 * free the memory space allocated for the child device
 	 * config parsed from VBT
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 454d8f937fae..081190da0818 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -3663,6 +3663,7 @@ extern void intel_i2c_reset(struct drm_i915_private *dev_priv);
 
 /* intel_bios.c */
 void intel_bios_init(struct drm_i915_private *dev_priv);
+void intel_bios_cleanup(struct drm_i915_private *dev_priv);
 bool intel_bios_is_valid_vbt(const void *buf, size_t size);
 bool intel_bios_is_tv_present(struct drm_i915_private *dev_priv);
 bool intel_bios_is_lvds_present(struct drm_i915_private *dev_priv, u8 *i2c_pin);
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 95f0b310d656..64a0d55df28e 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -1588,6 +1588,17 @@ void intel_bios_init(struct drm_i915_private *dev_priv)
 		pci_unmap_rom(pdev, bios);
 }
 
+/**
+ * intel_bios_cleanup - Free any resources allocated by intel_bios_init()
+ * @dev_priv: i915 device instance
+ */
+void intel_bios_cleanup(struct drm_i915_private *dev_priv)
+{
+	kfree(dev_priv->vbt.dsi.data);
+	kfree(dev_priv->vbt.dsi.pps);
+	kfree(dev_priv->vbt.dsi.config);
+}
+
 /**
  * intel_bios_is_tv_present - is integrated TV present in VBT
  * @dev_priv:	i915 device instance
-- 
2.14.3