diff mbox

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

Message ID 20180129144735.32412-1-hdegoede@redhat.com (mailing list archive)
State New, archived
Headers show

Commit Message

Hans de Goede Jan. 29, 2018, 2:47 p.m. UTC
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@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(+)

Comments

Ville Syrjälä Feb. 2, 2018, 4:13 p.m. UTC | #1
On Mon, Jan 29, 2018 at 03:47:34PM +0100, Hans de Goede wrote:
> 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@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

Looks like there's already a bunch of VBT related cleanup just below.
Maybe that should be sucked into the new cleanup function as well?

> 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
Hans de Goede Feb. 6, 2018, 1:24 p.m. UTC | #2
Hi,

On 02-02-18 17:13, Ville Syrjälä wrote:
> On Mon, Jan 29, 2018 at 03:47:34PM +0100, Hans de Goede wrote:
>> 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@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
> 
> Looks like there's already a bunch of VBT related cleanup just below.
> Maybe that should be sucked into the new cleanup function as well?

Ah, I somehow missed that, yes that is a good idea. I will send a v3 of
the series with that changed.

Regards,

Hans


> 
>> 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
>
diff mbox

Patch

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